chore: 🔖 Prepare for 3.3.5_001 release

Author: pvshvp-oss

CHANGELOG.md

@@ -1,5 +1,15 @@
 # CHANGELOG
 
+## Calamares Core `v3.3.5_001`
+
+### For Users
+
+- Update the installer from upstream, bringing new features and bug-fixes.
+
+### For Developers
+
+- Build against Qt6, update dependencies, and fix bugs resulting from the transition.
+
 ## Calamares Core `v3.3.2_001`
 
 ### For Users

CONTRIBUTING.md

@@ -15,8 +15,8 @@
 
 - [ ] Commit and push all changes through git, for example `git commit -m "Some message" && git push`
 
-- [ ] Create and push a tag, for example `git tag -a v3.3.0_alpha3_010 -m "This is version v3.3.0_alpha3_010" && git push origin v3.3.0_alpha3_010`
-- [ ] If there was a mistake and if you want to yank the release, run something like `git tag -d v3.3.0_alpha3_010 && git push --delete origin v3.3.0_alpha3_010`. Then the errors can be fixed and the previous step can be repeated to create a new tag.
+- [ ] Create and push a tag, for example `git tag -a v3.3.5_001 -m "This is version v3.3.5_001" && git push origin v3.3.5_001`
+- [ ] If there was a mistake and if you want to yank the release, run something like `git tag -d v3.3.5_001 && git push --delete origin v3.3.5_001`. Then the errors can be fixed and the previous step can be repeated to create a new tag.
 
 # Contributing to Calamares