CI: Stricter yamllint config

data/resources/gamedb.yaml

@@ -64572,7 +64572,6 @@ SLUS-01172:
   compatibility:
     rating: NoIssues
     versionTested: "0.1-986-gfc911de1"
-    comments: "a"
   controllers:
     - AnalogController
     - DigitalController
@@ -188394,7 +188393,6 @@ SLES-01907:
   compatibility:
     rating: NoIssues
     versionTested: "0.1-1645-g42d49426"
-    comments: "Libcrypt protected game, needs SBI file."
   controllers:
     - AnalogController
     - DigitalController

extras/yamllint-config.yaml

@@ -6,6 +6,7 @@ rules:
   indentation:
     spaces: 2
     indent-sequences: true
+    check-multi-line-strings: true
   document-start:
     present: false
   document-end:
@@ -13,4 +14,12 @@ rules:
   comments:
     require-starting-space: true
     min-spaces-from-content: 1
-
+  braces:
+    forbid: true
+  brackets:
+    forbid: true
+  empty-lines:
+    max: 0
+  empty-values: enable
+  octal-values:
+    forbid-implicit-octal: true