ci: Fix LTS releases are published as pre-releases (#8989)

Author: mtrezza

release.config.js

@@ -24,11 +24,11 @@ const templates = {
 async function config() {
 
   // Get branch
-  const branch = ref.split('/').pop().split('-')[0];
+  const branch = ref.split('/').pop();
   console.log(`Running on branch: ${branch}`);
 
   // Set changelog file
-  const changelogFile = `./changelogs/CHANGELOG_${branch}.md`;
+  const changelogFile = `./changelogs/CHANGELOG_release.md`;
   console.log(`Changelog file output to: ${changelogFile}`);
 
   // Load template file contents
@@ -40,8 +40,8 @@ async function config() {
       { name: 'alpha', prerelease: true },
       { name: 'beta', prerelease: true },
       'next-major',
-      // Long-Term-Support branch of previous major version
-      'release-6.x.x',
+      // Long-Term-Support branches
+      { name: 'release-6.x.x', range: '6.x.x', channel: '6.x.x' },
     ],
     dryRun: false,
     debug: true,
@@ -85,16 +85,6 @@ async function config() {
         labels: ['type:ci'],
         releasedLabels: ['state:released<%= nextRelease.channel ? `-\${nextRelease.channel}` : "" %>']
       }],
-      // Back-merge module runs last because if it fails it should not impede the release process
-      [
-        "@saithodev/semantic-release-backmerge",
-        {
-          "branches": [
-            { from: "beta", to: "alpha" },
-            { from: "release", to: "beta" },
-          ]
-        }
-      ],
     ],
   };