chore(ci): drop dead publish-native-libs.yml workflow (#36)

Predates the F-12 immutable-native-tag work. Produced the mutable
\`native-v\${BASE}\` release (no BUILD suffix) that no consumer reads:

- Rust binding's \`build.rs\` verifies against \`native-v\${BASE}.\${BUILD}\`
  tags authored by publish-rust.yml's inline native-libs job, per the
  SHA-256 manifest that ships inside the crate.
- Go binding bundles \`.a\` files at its \`bindings/go/v*\` tag commit; no
  GitHub Release involvement.
- Kotlin builds its own JNI libs in publish-kotlin.yml.
- Swift builds its own xcframework in build-xcframework.yml.

The last artefact the mutable release produced was on 2026-07-30 at
13:16 (release-all run 30545836623) and nothing has fetched it since.

Also removed the corresponding job from release-all.yml.

The orphaned \`native-v0.0.1-alpha\` GitHub Release and tag will be
deleted in a separate step (destructive, doing it via gh CLI once user
confirms).

Author: SahilVasava

.github/workflows/publish-native-libs.yml

@@ -24,13 +24,9 @@ jobs:
     uses: ./.github/workflows/publish-go.yml
     secrets: inherit
 
-  # Native libs release — uploaded as a GitHub Release asset that Rust's build.rs
-  # downloads at compile time. Tag-only push, no main commit.
-  publish-native-libs:
-    uses: ./.github/workflows/publish-native-libs.yml
-    secrets: inherit
-
-  # Rust to crates.io. Tag-only push; native libs job runs inline.
+  # Rust to crates.io. Tag-only push; native libs job runs inline and produces
+  # its own immutable `native-v${BASE}.${BUILD}` release (SHA-pinned via the
+  # F-12 manifest that ships in the published crate).
   publish-rust:
     uses: ./.github/workflows/publish-rust.yml
     secrets: inherit