Also pin editorconfigchecker by sha (#3621)

Author: yubiuser

.github/workflows/editorconfig-checker.yml

@@ -13,5 +13,5 @@ jobs:
         uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 #v5.0.0
         with:
           persist-credentials: false
-      - uses: editorconfig-checker/action-editorconfig-checker@main # tag v2. is really out of date
+      - uses: editorconfig-checker/action-editorconfig-checker@f40bac9e7d9e7d298fbe36b83e1eff8f0de13fb8 # tag v2. is really out of date
       - run: editorconfig-checker