Makes codecov-action optional

We do not want to fail the job if codecov fails
to upload the report due to rate limiting.

Signed-off-by: Mikalai Radchuk <[email protected]>

Author: Mikalai Radchuk

.github/workflows/e2e.yaml

@@ -34,5 +34,4 @@ jobs:
       with:
         files: e2e-cover.out
         flags: e2e
-        fail_ci_if_error: true
         functionalities: fixes

.github/workflows/unit-test.yaml

@@ -26,5 +26,4 @@ jobs:
       with:
         files: cover.out
         flags: unit
-        fail_ci_if_error: true
         functionalities: fixes