Update Rust, Crates, Profile and Actions (#4126)

- Updated Rust to v1.74.0
- Updated all crates (where possible)
- Changed release profile to use
  * fat lto
  * 1 codegen-unit
  This should optimize a bit for speed and a lot for size ~15MB smaller
- Updated Github actions to use caching for the bake process
- Added a schedule to clean the cache every week to prevent stale Debian/Alpine base images
- During the release action, the Alpine/static binaries are added as artifects.
  Later we could also automatically add them to the releases maybe.
- Added CODEWONERS to prevent unchecked changes to github actions workflows

.github/workflows/releasecache-cleanup.yml

@@ -0,0 +1,25 @@
+on:
+  workflow_dispatch:
+    inputs:
+      manual_trigger:
+        description: "Manual trigger buildcache cleanup"
+        required: false
+        default: ""
+
+  schedule:
+    - cron: '0 1 * * FRI'
+
+name: Cleanup
+jobs:
+  releasecache-cleanup:
+    name: Releasecache Cleanup
+    runs-on: ubuntu-22.04
+    timeout-minutes: 30
+    steps:
+      - name: Delete vaultwarden-buildcache containers
+        uses: actions/delete-package-versions@0d39a63126868f5eefaa47169615edd3c0f61e20 # v4.1.1
+        with:
+          package-name: 'vaultwarden-buildcache'
+          package-type: 'container'
+          min-versions-to-keep: 0
+          delete-only-untagged-versions: 'false'