build-fb-image: Update release documentation (#1515)

Signed-off-by: Marco Franssen <[email protected]>

Author: marcofranssen

RELEASE.md

@@ -138,8 +138,7 @@ Fluent Operator uses [custom builds](./cmd/fluent-watcher/README.md) of both Flu
 To publish a new fluent-bit image:
 
 * Execute the [bump-fluent-bit-version](https://github.com/fluent/fluent-operator/actions/workflows/bump-fluent-bit-version.yaml) workflow dispatch to generate a PR to update fluent-bit version references in this repo
-* Merge the PR generated by the [bump-fluent-bit-version](https://github.com/fluent/fluent-operator/actions/workflows/bump-fluent-bit-version.yaml) workflow
-* Execute the [build-fb-image](https://github.com/fluent/fluent-operator/actions/workflows/build-fb-image.yaml) workflow dispatch to build and publish the new image
+* Merge the PR generated by the [bump-fluent-bit-version](https://github.com/fluent/fluent-operator/actions/workflows/bump-fluent-bit-version.yaml) workflow. (This will [automatically trigger the release](https://github.com/fluent/fluent-operator/blob/master/.github/workflows/build-fluentbit-image.yaml#L4-L8) of the new fluent-bit image)
 
 ## Fluentd