workflows: update README
| [pr-closed-docker](./pr-closed-docker.yaml) | Removes docker images for PR on hub.docker.io/fluentbitdev/| on pr closed|
| [pr-compile-check](./pr-compile-check.yaml) | Runs some compilation sanity checks on a PR |
| [pr-integration-test](./pr-integration-test.yaml) | Runs the integration testing suite on a PR branch | pr opened / label created 'ok-to-test' / on new commit/push on PR(s) |
+| [pr-package-tests](./pr-package-tests.yaml) | Runs the package build for all targets on a PR branch | pr opened / label created 'ok-package-test' / on new commit/push on PR(s) |
| [pr-perf-test](./pr-integration-test.yaml) | Runs the performance testing suite on a PR branch | pr opened / label created 'ok-to-performance-test' / on new commit/push on PR(s) |
| [pr-stale](./pr-stale.yaml) | Closes stale PR(s) with no activity in 30 days | scheduled daily 01:30 AM UTC|
| [unit-tests](./unit-tests.yaml) | Runs the unit tests suite on master push or new PR | PR opened, merge in master branch |
