chore(deps): update dependency google-auth to v2.42.1

Author: renovate-bot

requirements.txt

@@ -155,9 +155,9 @@ google-api-core[grpc]==2.26.0 \
     # via
     #   google-cloud-core
     #   google-cloud-spanner
-google-auth==2.41.1 \
-    --hash=sha256:754843be95575b9a19c604a848a41be03f7f2afd8c019f716dc1f51ee41c639d \
-    --hash=sha256:b76b7b1f9e61f0cb7e88870d14f6a94aeef248959ef6992670efee37709cbfd2
+google-auth==2.42.1 \
+    --hash=sha256:30178b7a21aa50bffbdc1ffcb34ff770a2f65c712170ecd5446c4bef4dc2b94e \
+    --hash=sha256:eb73d71c91fc95dbd221a2eb87477c278a355e7367a35c0d84e6b0e5f9b4ad11
     # via
     #   google-api-core
     #   google-cloud-core