chore: cleanup release-please config

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

Author: diegomarquezp

.github/release-please.yml

@@ -1,49 +1,25 @@
 branches:
-  - branch: 1.127.12-sp
-    bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-lts
-  - bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-yoshi
-    branch: java7
-  - bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-backport
-    branch: 2.3.x
-  - bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-backport
-    branch: 2.10.x
-  - bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-backport
-    branch: 2.19.x
-  - bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-backport
-    branch: 2.35.x
-  - bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-backport
-    branch: 2.40.x
-  - bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-backport
-    branch: 2.48.x
-  - bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-backport
-    branch: 2.52.x
-  - bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-backport
-    branch: 2.51.x
-  - branch: protobuf-4.x-rc
-    bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-yoshi
-    manifest: true
+    - branch: 1.127.12-sp
+      releaseType: java-lts
+    - branch: java7
+    - releaseType: java-backport
+      branch: 2.3.x
+    - releaseType: java-backport
+      branch: 2.10.x
+    - releaseType: java-backport
+      branch: 2.19.x
+    - releaseType: java-backport
+      branch: 2.35.x
+    - releaseType: java-backport
+      branch: 2.40.x
+    - releaseType: java-backport
+      branch: 2.48.x
+    - releaseType: java-backport
+      branch: 2.52.x
+    - releaseType: java-backport
+      branch: 2.51.x
+    - branch: protobuf-4.x-rc
+      manifest: true
 bumpMinorPreMajor: true
 handleGHRelease: true
 releaseType: java-yoshi