[dependabot] Ignore all fixture directories

Seems like we can specify a wildcard dependency name to ignore all
dependencies from being updated. As I understand it dependabot will
still run monthly but no PRs will be generated.

ghstack-source-id: a47db58ad97c5dd7adc27ced25d39806c728410b
Pull Request resolved: #31074

.github/dependabot.yml

@@ -3,95 +3,133 @@ updates:
   - package-ecosystem: "npm"
     directory: "/fixtures/art"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     open-pull-requests-limit: 0
+    ignore:
+      - dependency-name: "*"
   - package-ecosystem: "npm"
     directory: "/fixtures/attribute-behavior"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     open-pull-requests-limit: 0
+    ignore:
+      - dependency-name: "*"
   - package-ecosystem: "npm"
     directory: "/fixtures/concurrent"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     open-pull-requests-limit: 0
+    ignore:
+      - dependency-name: "*"
   - package-ecosystem: "npm"
     directory: "/fixtures/devtools"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     open-pull-requests-limit: 0
+    ignore:
+      - dependency-name: "*"
   - package-ecosystem: "npm"
     directory: "/fixtures/dom"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     open-pull-requests-limit: 0
+    ignore:
+      - dependency-name: "*"
   - package-ecosystem: "npm"
     directory: "/fixtures/eslint"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     open-pull-requests-limit: 0
+    ignore:
+      - dependency-name: "*"
   - package-ecosystem: "npm"
     directory: "/fixtures/expiration"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     open-pull-requests-limit: 0
+    ignore:
+      - dependency-name: "*"
   - package-ecosystem: "npm"
     directory: "/fixtures/fiber-debugger"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     open-pull-requests-limit: 0
+    ignore:
+      - dependency-name: "*"
   - package-ecosystem: "npm"
     directory: "/fixtures/fizz"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     open-pull-requests-limit: 0
+    ignore:
+      - dependency-name: "*"
   - package-ecosystem: "npm"
     directory: "/fixtures/fizz-ssr-browser"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     open-pull-requests-limit: 0
+    ignore:
+      - dependency-name: "*"
   - package-ecosystem: "npm"
     directory: "/fixtures/flight"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     open-pull-requests-limit: 0
+    ignore:
+      - dependency-name: "*"
   - package-ecosystem: "npm"
     directory: "/fixtures/flight-esm"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     open-pull-requests-limit: 0
+    ignore:
+      - dependency-name: "*"
   - package-ecosystem: "npm"
     directory: "/fixtures/legacy-jsx-runtimes"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     open-pull-requests-limit: 0
+    ignore:
+      - dependency-name: "*"
   - package-ecosystem: "npm"
     directory: "/fixtures/nesting"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     open-pull-requests-limit: 0
+    ignore:
+      - dependency-name: "*"
   - package-ecosystem: "npm"
     directory: "/fixtures/packaging"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     open-pull-requests-limit: 0
+    ignore:
+      - dependency-name: "*"
   - package-ecosystem: "npm"
     directory: "/fixtures/scheduler"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     open-pull-requests-limit: 0
+    ignore:
+      - dependency-name: "*"
   - package-ecosystem: "npm"
     directory: "/fixtures/ssr"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     open-pull-requests-limit: 0
+    ignore:
+      - dependency-name: "*"
   - package-ecosystem: "npm"
     directory: "/fixtures/ssr-2"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     open-pull-requests-limit: 0
+    ignore:
+      - dependency-name: "*"
   - package-ecosystem: "npm"
     directory: "/fixtures/stacks"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     open-pull-requests-limit: 0
+    ignore:
+      - dependency-name: "*"