[SPARK-52465] Update .asf.yaml with new README.md link

Author: dongjoon-hyun

.asf.yaml

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# https://cwiki.apache.org/confluence/display/INFRA/git+-+.asf.yaml+features
+# https://github.com/apache/infrastructure-asfyaml/blob/main/README.md
 ---
 github:
   description: "Apache Spark Connect Client for Swift"