[ci] Use SHAs instead of tags for 3rd-party github actions

.github/actions/install-nix/action.yml

@@ -10,7 +10,7 @@ inputs:
 runs:
   using: composite
   steps:
-    - uses: cachix/install-nix-action@v30
+    - uses: cachix/install-nix-action@08dcb3a5e62fa31e2da3d490afc4176ef55ecd72 #v30
       with:
         github_access_token: ${{ inputs.github_token }}
     - run: nix develop --command echo "dependencies installed"

.github/actions/run-monitored-tmpnet-cmd/action.yml

@@ -45,7 +45,7 @@ runs:
     # - Avoid using the install-nix custom action since a relative
     #   path wouldn't be resolveable from other repos and an absolute
     #   path would require setting a version.
-    - uses: cachix/install-nix-action@v30
+    - uses: cachix/install-nix-action@08dcb3a5e62fa31e2da3d490afc4176ef55ecd72 #v30
       with:
         github_access_token: ${{ inputs.github_token }}
     - run: nix develop --command echo "dependencies installed"

.github/workflows/buf-push.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: bufbuild/buf-action@v1
+      - uses: bufbuild/buf-action@2232f407651f19e7e011fe9fe1dad409ae3c2e9b #v1
         with:
           input: "proto"
           # Breaking changes are managed by the rpcchainvm protocol version.

.github/workflows/ci.yml

@@ -138,7 +138,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: bufbuild/buf-action@v1
+      - uses: bufbuild/buf-action@2232f407651f19e7e011fe9fe1dad409ae3c2e9b #v1
         with:
           input: "proto"
           pr_comment: false
@@ -155,7 +155,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: ./.github/actions/setup-go-for-project
-      - uses: bufbuild/buf-action@v1
+      - uses: bufbuild/buf-action@2232f407651f19e7e011fe9fe1dad409ae3c2e9b #v1
         with:
           setup_only: true
           version: 1.35.0

.github/workflows/codeql-analysis.yml

@@ -47,7 +47,7 @@ jobs:
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v3
+        uses: github/codeql-action/init@d7eaefbfa6606a4adc96bdf7b9ba23d7fa931e69 #v3
         with:
           languages: ${{ matrix.language }}
           # If you wish to specify custom queries, you can do so here or in a config file.
@@ -56,4 +56,4 @@ jobs:
           # queries: ./path/to/local/query, your-org/your-repo/queries@main
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v3
+        uses: github/codeql-action/analyze@d7eaefbfa6606a4adc96bdf7b9ba23d7fa931e69 #v3

.github/workflows/labels.yml

@@ -19,6 +19,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: crazy-max/ghaction-github-labeler@v5
+      - uses: crazy-max/ghaction-github-labeler@31674a3852a9074f2086abcf1c53839d466a47e7 #v5
         with:
           dry-run: ${{ github.event_name == 'pull_request' }}

.github/workflows/publish_antithesis_images.yml

@@ -25,7 +25,7 @@ jobs:
       uses: actions/checkout@v4
 
     - name: Login to GAR
-      uses: docker/login-action@v3
+      uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 #v3
       with:
         registry: ${{ env.REGISTRY }}
         username: _json_key

.github/workflows/trigger-antithesis-avalanchego.yml

@@ -25,7 +25,7 @@ jobs:
     name: Run Antithesis Avalanchego Test Setup
     runs-on: ubuntu-latest
     steps:
-      - uses: antithesishq/antithesis-trigger-action@v0.7
+      - uses: antithesishq/antithesis-trigger-action@0843ed4168a88c305114511cd8bed2fe5ba352cb #v0.7
         with:
           notebook_name: avalanche
           tenant: avalanche

.github/workflows/trigger-antithesis-xsvm.yml

@@ -25,7 +25,7 @@ jobs:
     name: Run Antithesis XSVM Test Setup
     runs-on: ubuntu-latest
     steps:
-      - uses: antithesishq/antithesis-trigger-action@v0.7
+      - uses: antithesishq/antithesis-trigger-action@0843ed4168a88c305114511cd8bed2fe5ba352cb #v0.7
         with:
           notebook_name: avalanche
           tenant: avalanche