bump codecov action to v4.5.0

Author: nojnhuh

.github/workflows/cover.yaml

@@ -23,7 +23,7 @@ jobs:
       with:
         go-version: '1.20'
     - run: "PATH=/usr/local/go/bin:$PATH make test-cover"
-    - uses: codecov/codecov-action@54bcd8715eee62d40e33596ef5e8f0f48dbbccab # v4.1.0
+    - uses: codecov/codecov-action@e28ff129e5465c2c0dcc6f003fc735cb6ae0c673 # v4.5.0
       env:
         CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
       with: