Revert "releaser: Rework the run conditions"

This reverts commit 777534b2a4.

Circle ci throws validation errors:

```
Config does not conform to schema: {:workflows {:release {:jobs [{:prepare_release (not (map? nil)), :when {:and disallowed-key}} nil nil nil]}}}
```

.circleci/config.yml

@@ -98,16 +98,9 @@ workflows:
   release:
       jobs:  
         - prepare_release:
-          when:
-            and:
-              - matches:
-                  pattern: "^release-"
-                  value: << pipeline.git.branch >>
-              - not:
-                - matches:
-                    pattern: "NOCIRCLECI"
-                    value: << pipeline.trigger_parameters.github_app.commit_message >>
-
+            filters:
+              branches:
+                only: /release-.*/
         - build_container1:
             requires:
             - prepare_release

releaser/releaser.go

@@ -101,8 +101,7 @@ func (r *ReleaseHandler) Run() error {
 			return err
 		}
 
-		// About NOCIRCLECI, see issue #12753.
-		if _, err := r.git("commit", "-a", "-m", fmt.Sprintf("%s Bump versions for release of %s\n\nNOCIRCLECI", commitPrefix, newVersion)); err != nil {
+		if _, err := r.git("commit", "-a", "-m", fmt.Sprintf("%s Bump versions for release of %s\n\n[ci skip]", commitPrefix, newVersion)); err != nil {
 			return err
 		}