Disable codecov upload from forks for v1

Author: knutnergaard

.github/workflows/lint_test.yml

@@ -85,6 +85,7 @@ jobs:
             coverage combine
             coverage xml
         - name: Upload coverage to Codecov
+          if: github.repository == 'robotools/fontparts'
           uses: codecov/codecov-action@v4
           with:
             file: coverage.xml