ci: update ci conf to reflect branch renaming

Author: Timo Bechtel

.github/workflows/release.yml

@@ -3,7 +3,7 @@ name: Release
 on:
   push:
     branches:
-      - master
+      - main
 
 jobs:
   release:

.releaserc.json

@@ -1,10 +1,18 @@
 {
-  "plugins": [
-    "@semantic-release/commit-analyzer",
-    "@semantic-release/release-notes-generator",
-    "@semantic-release/changelog",
-    "@semantic-release/npm",
-    "@semantic-release/git",
-    "@semantic-release/github"
-  ]
+	"branches": [
+		"+([0-9])?(.{+([0-9]),x}).x",
+		"main",
+		"next",
+		"next-major",
+		{ "name": "beta", "prerelease": true },
+		{ "name": "alpha", "prerelease": true }
+	],
+	"plugins": [
+		"@semantic-release/commit-analyzer",
+		"@semantic-release/release-notes-generator",
+		"@semantic-release/changelog",
+		"@semantic-release/npm",
+		"@semantic-release/git",
+		"@semantic-release/github"
+	]
 }