ci: format the GameDB and make sure it stays that way

.github/workflows/lint_gamedb.yml

@@ -14,6 +14,7 @@ on:
 
 jobs:
   lint:
+    name: Lint and Validate GameDB
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Repository
@@ -30,4 +31,4 @@ jobs:
       - name: Check Formatting
         run: |
           npm install -g prettier
-          prettier --check ./bin/Resources/GameIndex.yaml
+          prettier --check ./bin/resources/GameIndex.yaml

.github/workflows/scripts/lint/gamedb/lint.py

@@ -213,7 +213,7 @@ option_validation_handlers = {
 class UniqueKeyLoader(yaml.FullLoader):
     def construct_mapping(self, node, deep=False):
         mapping = set()
-        for key_node, value_node in node.value:
+        for key_node, _ in node.value:
             key = self.construct_object(key_node, deep=deep)
             if key in mapping:
                 raise ValueError(f"Duplicate {key!r} key found in YAML.")

.prettierrc.yaml

@@ -0,0 +1,8 @@
+overrides:
+  - files: "**/GameIndex.yaml"
+    options:
+      tabWidth: 2
+      useTabs: false
+      quoteProps: consistent
+      endOfLine: auto
+      proseWrap: preserve