chore: Manifest setup with single root component (#8778)

* chore: Manifest setup with single root component

Author: ddixit14

.release-please-manifest.json

@@ -0,0 +1,3 @@
+{
+  ".": "0.200.0"
+}

release-please-config.json

@@ -0,0 +1,12 @@
+{
+  "release-type": "java-yoshi",
+  "versioning": "always-bump-minor",
+  "separate-pull-requests": false,
+  "include-component-in-tag": false,
+  "packages": {
+    ".": {
+      "component": "main"
+    }
+  },
+  "plugins": ["maven-workspace"]
+}