chore(deps): bump taiki-e/install-action from 2.67.18 to 2.68.15 (#3397)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Utkarsh Umesan Pillai <66651184+utpilla@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -65,7 +65,7 @@ jobs:
       with:
         toolchain: stable
         components: rustfmt, clippy
-    - uses: taiki-e/install-action@650c5ca14212efbbf3e580844b04bdccf68dac31 # v2.67.18
+    - uses: taiki-e/install-action@68675c5a5f1a6950c3975d33f3ae0ef155e5bf3d # v2.68.15
       with:
           tool: cargo-hack
     - uses: arduino/setup-protoc@c65c819552d16ad3c9b72d9dfd5ba5237b9c906b # v3.0.0
@@ -93,7 +93,7 @@ jobs:
           # https://github.com/awslabs/cargo-check-external-types/releases
           toolchain: nightly-2025-05-04
           components: rustfmt
-      - uses: taiki-e/install-action@650c5ca14212efbbf3e580844b04bdccf68dac31 # v2.67.18
+      - uses: taiki-e/install-action@68675c5a5f1a6950c3975d33f3ae0ef155e5bf3d # v2.68.15
         with:
           tool: cargo-check-external-types@0.2.0
       - name: external-type-check
@@ -117,7 +117,7 @@ jobs:
       - uses: dtolnay/rust-toolchain@e97e2d8cc328f1b50210efc529dca0028893a2d9
         with:
           toolchain: stable
-      - uses: taiki-e/install-action@650c5ca14212efbbf3e580844b04bdccf68dac31 # v2.67.18
+      - uses: taiki-e/install-action@68675c5a5f1a6950c3975d33f3ae0ef155e5bf3d # v2.68.15
         with:
           tool: cargo-msrv
       - uses: arduino/setup-protoc@c65c819552d16ad3c9b72d9dfd5ba5237b9c906b # v3.0.0
@@ -199,7 +199,7 @@ jobs:
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
       - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@650c5ca14212efbbf3e580844b04bdccf68dac31 # v2.67.18
+        uses: taiki-e/install-action@68675c5a5f1a6950c3975d33f3ae0ef155e5bf3d # v2.68.15
         with:
           tool: cargo-llvm-cov
       - name: cargo generate-lockfile
@@ -250,7 +250,7 @@ jobs:
       - uses: arduino/setup-protoc@c65c819552d16ad3c9b72d9dfd5ba5237b9c906b # v3.0.0
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
-      - uses: taiki-e/install-action@650c5ca14212efbbf3e580844b04bdccf68dac31 # v2.67.18
+      - uses: taiki-e/install-action@68675c5a5f1a6950c3975d33f3ae0ef155e5bf3d # v2.68.15
         with:
           tool: cargo-shear
       - name: cargo shear