ci: use semantic release, release branch, and merge release workflows

.releaserc.json

@@ -0,0 +1,18 @@
+{
+  "branches": ["release"],
+  "tagFormat": "${version}",
+  "plugins": [
+    "@semantic-release/commit-analyzer",
+    "@semantic-release/release-notes-generator",
+    "@semantic-release/changelog",
+    "semantic-release-export-data",
+    ["@semantic-release/npm", { "npmPublish": false }],
+    ["@semantic-release/git", {
+      "assets": ["package.json", "CHANGELOG.md"],
+      "message": "chore(release): ${nextRelease.version} [skip ci]\n\n${nextRelease.notes}"
+    }],
+    ["@saithodev/semantic-release-gitea", {
+      "giteaUrl": "https://gitea.alexlebens.dev"
+    }]
+  ]
+}