chore(CI): update codecov to fix keybase signing issues

Author: RoamingNoMaD

.github/workflows/ci.yml

@@ -149,7 +149,7 @@ jobs:
         RUBY_YJIT_ENABLE: 1
       run: bin/rake spec
     - name: Upload code coverage from RSpec
-      uses: codecov/codecov-action@v6.0.1
+      uses: codecov/codecov-action@v7.0.0
       with:
         fail_ci_if_error: true
         token: ${{ secrets.CODECOV_TOKEN }}
@@ -167,7 +167,7 @@ jobs:
         RUBY_YJIT_ENABLE: 1
       run: bin/rake test
     - name: Upload code coverage from minitest
-      uses: codecov/codecov-action@v6.0.1
+      uses: codecov/codecov-action@v7.0.0
       with:
         fail_ci_if_error: true
         token: ${{ secrets.CODECOV_TOKEN }}