chore: remove OpenSSF regression check (#1899)

* chore: remove OpenSSF regression check

* remove the mentions of the regression check

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

.github/workflows/scorecard.yml

@@ -13,8 +13,6 @@ on:
     - cron: '* * 1/7 * *'
   push:
     branches: [ "main" ]
-  pull_request:
-    branches: [ "main" ]
 
 # Declare default permissions as read only.
 permissions: read-all
@@ -23,8 +21,6 @@ jobs:
   analysis:
     name: Scorecard analysis
     runs-on: ubuntu-latest
-    # Only run full analysis on the default branch (push/schedule); PRs use the regression-check job instead.
-    if: github.event_name != 'pull_request'
     permissions:
       # Needed to upload the results to code-scanning dashboard.
       security-events: write
@@ -78,22 +74,3 @@ jobs:
         uses: github/codeql-action/upload-sarif@0d579ffd059c29b07949a3cce3983f0780820c98 # v4
         with:
           sarif_file: results.sarif
-
-  regression-check:
-    name: Scorecard regression check
-    runs-on: ubuntu-slim
-    if: github.event_name == 'pull_request'
-    permissions:
-      contents: read
-    steps:
-      - name: "Checkout code"
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-        with:
-          persist-credentials: false
-          fetch-depth: 0
-
-      - name: "Check for score regressions"
-        uses: bootc-dev/actions/openssf-scorecard@5f2749dbf075d7b485749c47ecfcc2badd604eab
-        with:
-          base-sha: ${{ github.event.pull_request.base.sha }}
-          head-sha: ${{ github.event.pull_request.head.sha }}