.testing: Codecov token for unit test upload

The codecov token was added to the tc* test upload, but not the unit
test upload.  This patch adds the token to the unit testing.

.github/workflows/coverage.yml

@@ -28,10 +28,14 @@ jobs:
     - name: Report unit test coverage to CI (PR)
       if: github.event_name == 'pull_request'
       run: make report.cov.unit REQUIRE_COVERAGE_UPLOAD=true
+      env:
+        CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
 
     - name: Report unit test coverage to CI (Push)
       if: github.event_name != 'pull_request'
       run: make report.cov.unit
+      env:
+        CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
 
     - name: Compile ocean-only MOM6 with code coverage
       run: make -j build/cov/MOM6

.testing/Makefile

@@ -698,7 +698,7 @@ build/unit/MOM_file_parser_tests.F90.gcov: $(WORKSPACE)/work/unit/std.out
 
 .PHONY: report.cov.unit
 report.cov.unit: build/unit/MOM_file_parser_tests.F90.gcov codecov
-	./codecov -R build/unit -f "*.gcov" -Z -n "Unit tests" \
+	./codecov $(CODECOV_TOKEN_ARG) -R build/unit -f "*.gcov" -Z -n "Unit tests" \
 	    > build/unit/codecov.out \
 	    2> build/unit/codecov.err \
 	  && echo -e "${MAGENTA}Report uploaded to codecov.${RESET}" \