CI: Make codespell checks blocking, but only check changed files

.github/workflows/static_checks.yml

@@ -36,6 +36,8 @@ jobs:
           fi
           echo "$files" >> changed.txt
           cat changed.txt
+          files=$(echo "$files" | tr '\n' ' ')
+          echo "CHANGED_FILES=$files" >> $GITHUB_ENV
 
       - name: File formatting checks (file_format.sh)
         run: |
@@ -98,9 +100,10 @@ jobs:
           fi
 
       - name: Spell checks via codespell
+        if: github.event_name == 'pull_request'
         uses: codespell-project/actions-codespell@v1
         with:
           skip: ./.*,./**/.*,./bin,./thirdparty,*.desktop,*.gen.*,*.po,*.pot,*.rc,./AUTHORS.md,./COPYRIGHT.txt,./DONORS.md,./core/input/gamecontrollerdb.txt,./core/string/locales.h,./editor/project_converter_3_to_4.cpp,./misc/scripts/codespell.sh,./platform/android/java/lib/src/com,./platform/web/node_modules,./platform/web/package-lock.json
           check_hidden: false
-          ignore_words_list: curvelinear,doubleclick,expct,findn,gird,hel,inout,lod,nd,numer,ot,te
-          only_warn: true
+          ignore_words_list: curvelinear,doubleclick,expct,findn,gird,hel,inout,lod,nd,numer,ot,te,vai
+          path: ${{ env.CHANGED_FILES }}