[SEC-7924] chore: pin third-party GitHub Actions to commit SHAs

Pin all third-party GitHub Actions to full-length commit SHAs to prevent
supply chain attacks. Addresses findings from the
third-party-action-not-pinned-to-commit-sha Semgrep rule.

Author: pkaeding

.github/actions/ci/action.yml

@@ -8,7 +8,7 @@ inputs:
 runs:
   using: composite
   steps:
-    - uses: ruby/setup-ruby@v1
+    - uses: ruby/setup-ruby@319994f95fa847cf3fb3cd3dbe89f6dcde9f178f # v1
       with:
         ruby-version: ${{ inputs.ruby-version }}
 

.github/workflows/ci.yml

@@ -41,7 +41,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: ruby/setup-ruby@v1
+      - uses: ruby/setup-ruby@319994f95fa847cf3fb3cd3dbe89f6dcde9f178f # v1
         with:
           ruby-version: 3.2
 

.github/workflows/manual-publish-docs.yml

@@ -11,7 +11,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: ruby/setup-ruby@v1
+      - uses: ruby/setup-ruby@319994f95fa847cf3fb3cd3dbe89f6dcde9f178f # v1
         with:
           ruby-version: 3.1
 

.github/workflows/release-please.yml

@@ -16,7 +16,7 @@ jobs:
       release-created: ${{ steps.release.outputs.release_created }}
       tag-name: ${{ steps.release.outputs.tag_name }}
     steps:
-      - uses: googleapis/release-please-action@v4
+      - uses: googleapis/release-please-action@16a9c90856f42705d54a6fda1823352bdc62cf38 # v4
         id: release
 
   release-sdk: