ci: fix?

Author: Omochice

.github/workflows/ci.yml

@@ -58,7 +58,6 @@ jobs:
         run: |
           octocov badge coverage --out ${{ github.workspace }}/${{ steps.filename.outputs.filename }}
       - name: upload badge to artifact
-        if: github.ref == "refs/heads/main"
         uses: actions/upload-artifact@v4
         with:
           path: ${{ steps.filename.outputs.filename }}
@@ -67,6 +66,7 @@ jobs:
 
   upload-coverage-badge:
     runs-on: ubuntu-latest
+    if: startsWith(github.ref, 'refs/heads/main')
     needs: themis
     steps:
       - name: download artifacts
@@ -84,7 +84,7 @@ jobs:
 
   deploy-to-github-pages:
     runs-on: ubuntu-latest
-    if: github.ref == "refs/heads/main"
+    if: startsWith(github.ref, 'refs/heads/main')
     needs: upload-coverage-badge
     permissions:
       pages: write