ci(deps): bump actions/github-script from 7 to 8

.github/workflows/benchmark-manual.yml

@@ -136,7 +136,7 @@ jobs:
 
       - name: Post results to PR
         if: github.event_name == 'workflow_dispatch' && github.event.inputs.post_comment == 'true' && github.event.inputs.pr_number
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const fs = require('fs');

.github/workflows/benchmark-on-merge.yml

@@ -96,7 +96,7 @@ jobs:
           echo "EOF" >> $GITHUB_OUTPUT
 
       - name: Post benchmark results to PR
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const fs = require('fs');

.github/workflows/benchmark-pr.yml

@@ -46,7 +46,7 @@ jobs:
 
       - name: Fetch PR details for comment trigger
         if: github.event_name == 'issue_comment'
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         id: pr_details
         with:
           script: |