chore: update 2.21s system-tests version (#14051)

## Checklist
- [x] PR author has checked that all the criteria below are met
- The PR description includes an overview of the change
- The PR description articulates the motivation for the change
- The change includes tests OR the PR description describes a testing
strategy
- The PR description notes risks associated with the change, if any
- Newly-added code is easy to change
- The change follows the [library release note
guidelines](https://ddtrace.readthedocs.io/en/stable/releasenotes.html)
- The change includes or references documentation updates if necessary
- Backport labels are set (if
[applicable](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting))

## Reviewer Checklist
- [x] Reviewer has checked that all the criteria below are met 
- Title is accurate
- All changes are related to the pull request's stated goal
- Avoids breaking
[API](https://ddtrace.readthedocs.io/en/stable/versioning.html#interfaces)
changes
- Testing strategy adequately addresses listed risks
- Newly-added code is easy to change
- Release note makes sense to a user of the library
- If necessary, author has acknowledged and discussed the performance
implications of this PR as reported in the benchmarks PR comment
- Backport labels are set in a manner that is consistent with the
[release branch maintenance
policy](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting)

---------

Co-authored-by: Charles de Beauchesne <[email protected]>

Author: emmettbutler

.github/workflows/system-tests.yml

@@ -11,32 +11,6 @@ on:
     - cron: '00 04 * * 2-6'
 
 jobs:
-  system-tests-build-agent:
-    runs-on: ubuntu-latest
-    steps:
-
-      - name: Checkout system tests
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          persist-credentials: false
-          repository: 'DataDog/system-tests'
-          ref: '41b5ebf2ba153c06c0020b396923dec0d6b1e5bf'
-
-      - name: Build agent
-        run: ./build.sh -i agent
-
-      - name: Save
-        id: save
-        run: |
-          docker image save system_tests/agent:latest | gzip > agent_${{ github.sha }}.tar.gz
-
-      - uses: actions/upload-artifact@65c4c4a1ddee5b72f698fdd19549f0f0fb45cf08 # v4.6.0
-        with:
-          name: agent_${{ github.sha }}
-          path: |
-            agent_${{ github.sha }}.tar.gz
-          retention-days: 2
-
   system-tests-build-weblog:
     runs-on: ubuntu-latest
     strategy:
@@ -67,7 +41,7 @@ jobs:
         with:
           persist-credentials: false
           repository: 'DataDog/system-tests'
-          ref: '41b5ebf2ba153c06c0020b396923dec0d6b1e5bf'
+          ref: 'bb677c0b7d6dd7309d4162f4540bc3d7c604486e'
 
       - name: Checkout dd-trace-py
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
@@ -96,7 +70,7 @@ jobs:
 
   system-tests:
     runs-on: ubuntu-latest
-    needs: [system-tests-build-agent, system-tests-build-weblog]
+    needs: [system-tests-build-weblog]
     strategy:
       matrix:
         weblog-variant: [flask-poc, uwsgi-poc , django-poc, fastapi, python3.12, django-py3.13]
@@ -120,7 +94,7 @@ jobs:
         with:
           persist-credentials: false
           repository: 'DataDog/system-tests'
-          ref: '41b5ebf2ba153c06c0020b396923dec0d6b1e5bf'
+          ref: 'bb677c0b7d6dd7309d4162f4540bc3d7c604486e'
 
       - name: Build runner
         uses: ./.github/actions/install_runner
@@ -130,16 +104,10 @@ jobs:
           name: ${{ matrix.weblog-variant }}_${{ github.sha }}
           path: images_artifacts/
 
-      - uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8
-        with:
-          name: agent_${{ github.sha }}
-          path: images_artifacts/
-
       - name: docker load
         id: docker_load
         run: |
           docker load < images_artifacts/${{ matrix.weblog-variant}}_weblog_${{ github.sha }}.tar.gz
-          docker load < images_artifacts/agent_${{ github.sha }}.tar.gz
 
       - name: Run DEFAULT
         if: always() && steps.docker_load.outcome == 'success' && matrix.scenario == 'other'
@@ -294,7 +262,7 @@ jobs:
         with:
           persist-credentials: false
           repository: 'DataDog/system-tests'
-          ref: '41b5ebf2ba153c06c0020b396923dec0d6b1e5bf'
+          ref: 'bb677c0b7d6dd7309d4162f4540bc3d7c604486e'
       - name: Checkout dd-trace-py
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:

.gitlab-ci.yml

@@ -92,16 +92,6 @@ promote-oci-to-staging:
     - job: oci-internal-publish
       artifacts: true
 
-publish-lib-init-ghcr-tags:
-  stage: release
-  rules: null
-  only:
-    # TODO: Support publishing rc releases
-    - /^v[0-9]+\.[0-9]+\.[0-9]+$/
-  needs:
-    - job: release_pypi_prod
-    - job: create-multiarch-lib-injection-image
-
 publish-lib-init-pinned-tags:
   stage: release
   rules: null

.gitlab/one-pipeline.locked.yml

@@ -1,4 +1,4 @@
 # DO NOT EDIT THIS FILE MANUALLY
 # This file is auto-generated by automation.
 include:
-  - remote: https://gitlab-templates.ddbuild.io/libdatadog/one-pipeline/ca/f2050f53c1f5aed62a24e6b406c746e7d593230ce02b5d56d2a2296db763ebf4/one-pipeline.yml
+  - remote: https://gitlab-templates.ddbuild.io/libdatadog/one-pipeline/ca/a0486057161f85a77e39ad2aa60ac66bb52414696d9b3dd87177df1057b11295/one-pipeline.yml