patch 8.2.2156: Github actions run on pusing a tag

Problem:    Github actions run on pusing a tag.
Solution:   Don't run CI on tag push. Omit coveralls on pull-request.
            (Ozaki Kiichi, closes #7489)
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 758da09..b6dd144 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,6 +1,9 @@
 name: GitHub CI
 
-on: [push, pull_request]
+on:
+  push:
+    branches: ['**']
+  pull_request:
 
 jobs:
   linux:
@@ -197,7 +200,7 @@
           do_test make ${SHADOWOPT} ${TEST}
 
       - name: Coveralls
-        if: matrix.coverage && success()
+        if: matrix.coverage && success() && github.event_name != 'pull_request'
         env:
           COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}
           COVERALLS_PARALLEL: true
@@ -210,8 +213,11 @@
 
       - name: Codecov
         if: matrix.coverage && success()
-        run: |
-          cd "${SRCDIR}" && bash <(curl -s https://codecov.io/bash)
+        uses: codecov/codecov-action@v1
+        with:
+          flags: ${{ matrix.features }}-${{ matrix.compiler }}-${{ matrix.extra }}
+          fail_ci_if_error: true
+          working-directory: ${{ env.SRCDIR }}
 
       - name: ASan logs
         if: contains(matrix.extra, 'asan') && !cancelled()
@@ -225,7 +231,7 @@
     runs-on: ubuntu-latest
 
     needs: linux
-    if: always()
+    if: github.event_name != 'pull_request'
 
     steps:
       - name: Parallel finished