refactor: Replace linting configurations

The previous package was outdated, preventing us from updating TS.
This one also lints YAML and JSON,
and applies many more rules to the test files,
explaining all the changes in this PR.

.github/dependabot.yml

@@ -1,33 +1,33 @@
 version: 2
 updates:
-  - package-ecosystem: "github-actions"
+  - package-ecosystem: github-actions
     directory: /
     schedule:
-      interval: "daily"
-      time: "02:13"
-      timezone: "Europe/Brussels"
+      interval: daily
+      time: '02:13'
+      timezone: Europe/Brussels
     labels:
-      - "⚙️ dependencies"
-  - package-ecosystem: "npm"
+      - ⚙️ dependencies
+  - package-ecosystem: npm
     directory: /
     schedule:
-      interval: "daily"
-      time: "03:35"
-      timezone: "Europe/Brussels"
-    target-branch: "versions/next-major"
+      interval: daily
+      time: '03:35'
+      timezone: Europe/Brussels
+    target-branch: versions/next-major
     ignore:
       # Ignore minor and patch version updates
-      - dependency-name: "*"
-        update-types: ["version-update:semver-minor", "version-update:semver-patch"]
+      - dependency-name: '*'
+        update-types: ['version-update:semver-minor', 'version-update:semver-patch']
       # Sticking with Husky 4.x
-      - dependency-name: "husky"
+      - dependency-name: husky
     labels:
-      - "⚙️ dependencies"
-  - package-ecosystem: "docker"
+      - ⚙️ dependencies
+  - package-ecosystem: docker
     directory: /
     schedule:
-      interval: "daily"
-      time: "04:22"
-      timezone: "Europe/Brussels"
+      interval: daily
+      time: '04:22'
+      timezone: Europe/Brussels
     labels:
-      - "⚙️ dependencies"
+      - ⚙️ dependencies