Fix *100 string

Signed-off-by: Andreas Heinrich <[email protected]>

.github/workflows/continuous_integration.yml

@@ -455,7 +455,7 @@ jobs:
 
           with open(os.environ["GITHUB_OUTPUT"], "a") as f:
               f.write(f"line_coverage={line_coverage}\n")
-              f.write(f"line_coverage_percentage={line_coverage * 100}\n")
+              f.write(f"line_coverage_percentage={float(line_coverage) * 100}\n")
       - name: Generate coverage badge
         run: |
           # LTODO install in docker image