ci(cpp-matrix): enable fmt vcpkg package when not fetching it

Author: alandefreitas

.github/workflows/ci.yml

@@ -56,7 +56,7 @@ jobs:
             mingw: No-Deps
           trace-commands: true
           extra-values: |
-            vcpkg-packages: {{#if fetch-content}}fmt{{/if}}
+            vcpkg-packages: {{#if (not fetch-content)}}fmt{{/if}}
             address-model: {{#if x86}}32{{else}}64{{/if}}
 
   build: