fix: Checkout GitHub tools using ref instead of main branch in two more actions

.github/actions/flaky-test-report/action.yml

@@ -14,15 +14,24 @@ inputs:
   slack-webhook-flaky-tests:
     description: 'Slack webhook URL for flaky test reports'
     required: true
+  github-tools-repository:
+    description: 'The GitHub repository containing the GitHub tools. Defaults to the GitHub tools action repositor, and usually does not need to be changed.'
+    required: false
+    default: ${{ github.action_repository }}
+  github-tools-ref:
+    description: 'The SHA of the action to use. Defaults to the current action ref, and usually does not need to be changed.'
+    required: false
+    default: ${{ github.action_ref }}
 
 runs:
   using: composite
   steps:
-    - name: Checkout github-tools repository
+    - name: Checkout GitHub tools repository
       uses: actions/checkout@v6
       with:
-        repository: MetaMask/github-tools
-        path: github-tools
+        repository: ${{ inputs.github-tools-repository }}
+        ref: ${{ inputs.github-tools-ref }}
+        path: ./github-tools
 
     - name: Set up Node.js
       uses: actions/setup-node@v6

.github/actions/update-release-changelog/action.yml

@@ -16,13 +16,17 @@ inputs:
     required: false
     default: 'null'
     description: 'Previous release version reference (branch/tag/SHA). Use "null" for hotfixes.'
-  github-tools-version:
-    required: false
-    default: 'main'
-    description: 'Version of github-tools to use (branch, tag, or SHA).'
   github-token:
     required: true
     description: 'GitHub token with write access to the invoking repository and read access to planning resources.'
+  github-tools-repository:
+    description: 'The GitHub repository containing the GitHub tools. Defaults to the GitHub tools action repositor, and usually does not need to be changed.'
+    required: false
+    default: ${{ github.action_repository }}
+  github-tools-ref:
+    description: 'The SHA of the action to use. Defaults to the current action ref, and usually does not need to be changed.'
+    required: false
+    default: ${{ github.action_ref }}
 
 runs:
   using: composite
@@ -36,12 +40,12 @@ runs:
         token: ${{ inputs.github-token }}
 
     # Step 2: Checkout github-tools repository
-    - name: Checkout github-tools repository
+    - name: Checkout GitHub tools repository
       uses: actions/checkout@v6
       with:
-        repository: MetaMask/github-tools
-        ref: ${{ inputs.github-tools-version }}
-        path: github-tools
+        repository: ${{ inputs.github-tools-repository }}
+        ref: ${{ inputs.github-tools-ref }}
+        path: ./github-tools
 
     # Step 3: Setup environment from github-tools
     - name: Checkout and setup environment