ci: bump codecov/codecov-action from 5.1.1 to 5.1.2 (#419)

Author: dependabot[bot]

.github/workflows/code_coverage.yml

@@ -25,7 +25,7 @@ jobs:
           cargo +nightly tarpaulin --verbose --all-features --workspace --timeout 120 --out xml
 
       - name: Upload to codecov.io
-        uses: codecov/codecov-action@7f8b4b4bde536c465e797be725718b88c5d95e0e
+        uses: codecov/codecov-action@1e68e06f1dbfde0e4cefc87efeba9e4643565303
         with:
           fail_ci_if_error: true
         env: