feat: Update vcpkg

Author: nlogozzo

.github/workflows/windows.yml

@@ -51,9 +51,9 @@ jobs:
         with:
           pkgs: libnick
           triplet: ${{ matrix.variant.triplet }}
-          revision: 7fc30b81e384741d8ae211e3e46777e1a436b87a
+          revision: 6548e2ee65216d462b945337ba74d09269fb4e8f
           token: ${{ github.token }}
-          cache-key: ${{ matrix.variant.triplet }}-7fc30b81e384741d8ae211e3e46777e1a436b87a
+          cache-key: ${{ matrix.variant.triplet }}-6548e2ee65216d462b945337ba74d09269fb4e8f
       - name: "Build (Installer)"
         working-directory: ${{ github.workspace }}/build
         run: |