Update module cloud.google.com/go/longrunning to v0.6.4 (#339)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

go.mod

@@ -32,7 +32,7 @@ require (
 	cloud.google.com/go/compute/metadata v0.6.0 // indirect
 	cloud.google.com/go/iam v1.3.1 // indirect
 	cloud.google.com/go/kms v1.20.4 // indirect
-	cloud.google.com/go/longrunning v0.6.3 // indirect
+	cloud.google.com/go/longrunning v0.6.4 // indirect
 	cloud.google.com/go/monitoring v1.22.0 // indirect
 	cloud.google.com/go/storage v1.49.0 // indirect
 	filippo.io/age v1.2.1 // indirect

go.sum

@@ -22,6 +22,8 @@ cloud.google.com/go/logging v1.12.0 h1:ex1igYcGFd4S/RZWOCU51StlIEuey5bjqwH9ZYjHi
 cloud.google.com/go/logging v1.12.0/go.mod h1:wwYBt5HlYP1InnrtYI0wtwttpVU1rifnMT7RejksUAM=
 cloud.google.com/go/longrunning v0.6.3 h1:A2q2vuyXysRcwzqDpMMLSI6mb6o39miS52UEG/Rd2ng=
 cloud.google.com/go/longrunning v0.6.3/go.mod h1:k/vIs83RN4bE3YCswdXC5PFfWVILjm3hpEUlSko4PiI=
+cloud.google.com/go/longrunning v0.6.4 h1:3tyw9rO3E2XVXzSApn1gyEEnH2K9SynNQjMlBi3uHLg=
+cloud.google.com/go/longrunning v0.6.4/go.mod h1:ttZpLCe6e7EXvn9OxpBRx7kZEB0efv8yBO6YnVMfhJs=
 cloud.google.com/go/monitoring v1.22.0 h1:mQ0040B7dpuRq1+4YiQD43M2vW9HgoVxY98xhqGT+YI=
 cloud.google.com/go/monitoring v1.22.0/go.mod h1:hS3pXvaG8KgWTSz+dAdyzPrGUYmi2Q+WFX8g2hqVEZU=
 cloud.google.com/go/storage v1.49.0 h1:zenOPBOWHCnojRd9aJZAyQXBYqkJkdQS42dxL55CIMw=