Revert back to previous baseline of vcpkg

grpc 1.28 create huge binary files that was too large for the caching on github action. Revert to previous config to make sure all vcpkg artifacts can be cached.

vcpkg-configuration.json

@@ -1,14 +1,14 @@
 {
     "default-registry": {
         "kind": "git",
-        "baseline": "6f29f12e82a8293156836ad81cc9bf5af41fe836",
+        "baseline": "a42af01b72c28a8e1d7b48107b33e4f286a55ef6",
         "repository": "https://github.com/microsoft/vcpkg"
     },
-  "registries": [
-    {
-      "kind": "artifact",
-      "location": "https://github.com/microsoft/vcpkg-ce-catalog/archive/refs/heads/main.zip",
-      "name": "microsoft"
-    }
-  ]
-}
+    "registries": [
+        {
+            "kind": "artifact",
+            "location": "https://github.com/microsoft/vcpkg-ce-catalog/archive/refs/heads/main.zip",
+            "name": "microsoft"
+        }
+    ]
+}

vcpkg.json

@@ -8,11 +8,5 @@
         "type-lite",
         "fast-float",
         "spdlog"
-    ],
-    "overrides": [
-        {
-            "name": "fmt",
-            "version": "10.1.1"
-        }
     ]
 }