Use ruby version 3.4.1 (#33304)

.github/ISSUE_TEMPLATE/2.server_bug_report.yml

@@ -60,7 +60,7 @@ body:
         Any additional technical details you may have, like logs or error traces
       value: |
         If this is happening on your own Mastodon server, please fill out those:
-        - Ruby version: (from `ruby --version`, eg. v3.3.5)
+        - Ruby version: (from `ruby --version`, eg. v3.4.1)
         - Node.js version: (from `node --version`, eg. v20.18.0)
     validations:
       required: false

.github/ISSUE_TEMPLATE/3.troubleshooting.yml

@@ -61,7 +61,7 @@ body:
       value: |
         Please at least include those informations:
         - Operating system: (eg. Ubuntu 22.04)
-        - Ruby version: (from `ruby --version`, eg. v3.3.5)
+        - Ruby version: (from `ruby --version`, eg. v3.4.1)
         - Node.js version: (from `node --version`, eg. v20.18.0)
     validations:
       required: false

.github/renovate.json5

@@ -14,11 +14,6 @@
   // If we do not want a package to be grouped with others, we need to set its groupName
   // to `null` after any other rule set it to something.
   dependencyDashboardHeader: 'This issue lists Renovate updates and detected dependencies. Read the [Dependency Dashboard](https://docs.renovatebot.com/key-concepts/dashboard/) docs to learn more. Before approving any upgrade: read the description and comments in the [`renovate.json5` file](https://github.com/mastodon/mastodon/blob/main/.github/renovate.json5).',
-  constraints: {
-    // Mastodon should work on Ruby 3.4, but its test dependencies are currently uninstallable on Ruby 3.4.
-    // TODO: remove this once https://github.com/briandunn/flatware/issues/103 is fixed
-    ruby: '3.3',
-  },
   postUpdateOptions: ['yarnDedupeHighest'],
   packageRules: [
     {

.github/workflows/test-ruby.yml

@@ -125,6 +125,7 @@ jobs:
       matrix:
         ruby-version:
           - '3.2'
+          - '3.3'
           - '.ruby-version'
     steps:
       - uses: actions/checkout@v4
@@ -226,6 +227,7 @@ jobs:
       matrix:
         ruby-version:
           - '3.2'
+          - '3.3'
           - '.ruby-version'
     steps:
       - uses: actions/checkout@v4
@@ -304,6 +306,7 @@ jobs:
       matrix:
         ruby-version:
           - '3.2'
+          - '3.3'
           - '.ruby-version'
 
     steps:
@@ -420,6 +423,7 @@ jobs:
       matrix:
         ruby-version:
           - '3.2'
+          - '3.3'
           - '.ruby-version'
         search-image:
           - docker.elastic.co/elasticsearch/elasticsearch:7.17.13