chore: cleanup release-please config (#3128)

* chore: cleanup release-please config

- Remove redundant options already declared at the top level.\n- Remove bumpMinorPreMajor for repositories after the first major release.

* chore: format release-please.yml

Author: diegomarquezp

.github/release-please.yml

@@ -2,44 +2,22 @@ bumpMinorPreMajor: true
 handleGHRelease: true
 releaseType: java-yoshi
 branches:
-  - bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-yoshi
-    branch: java7
-  - bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-backport
-    branch: 2.4.x
-  - bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-backport
-    branch: 2.12.x
-  - bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-backport
-    branch: 2.25.x
-  - bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-backport
-    branch: 2.38.x
-  - bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-backport
-    branch: 2.47.x
-  - bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-backport
-    branch: 3.5.x
-  - bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-backport
-    branch: 3.11.x
-  - bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-backport
-    branch: 3.15.x
-  - bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-yoshi
-    branch: protobuf-4.x-rc
-    manifest: true
+    - branch: java7
+    - branch: 2.4.x
+      releaseType: java-backport
+    - branch: 2.12.x
+      releaseType: java-backport
+    - branch: 2.25.x
+      releaseType: java-backport
+    - branch: 2.38.x
+      releaseType: java-backport
+    - branch: 2.47.x
+      releaseType: java-backport
+    - branch: 3.5.x
+      releaseType: java-backport
+    - branch: 3.11.x
+      releaseType: java-backport
+    - branch: 3.15.x
+      releaseType: java-backport
+    - branch: protobuf-4.x-rc
+      manifest: true