Bump cloud.google.com/go/storage from 1.19.0 to 1.20.0 (#1924)

Bumps [cloud.google.com/go/storage](https://github.com/googleapis/google-cloud-go) from 1.19.0 to 1.20.0.
- [Release notes](https://github.com/googleapis/google-cloud-go/releases)
- [Changelog](https://github.com/googleapis/google-cloud-go/blob/main/CHANGES.md)
- [Commits](https://github.com/googleapis/google-cloud-go/compare/spanner/v1.19.0...spanner/v1.20.0)

---
updated-dependencies:
- dependency-name: cloud.google.com/go/storage
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

vendor/cloud.google.com/go/storage/CHANGES.md

@@ -1,5 +1,13 @@
 # Changes
 
+
+## [1.20.0](https://www.github.com/googleapis/google-cloud-go/compare/storage/v1.19.0...storage/v1.20.0) (2022-02-04)
+
+
+### Features
+
+* **storage/internal:** Update definition of RewriteObjectRequest to bring to parity with JSON API support ([#5447](https://www.github.com/googleapis/google-cloud-go/issues/5447)) ([7d175ef](https://www.github.com/googleapis/google-cloud-go/commit/7d175ef12b7b3e75585427f5dd2aab4a175e92d6))
+
 ## [1.19.0](https://www.github.com/googleapis/google-cloud-go/compare/storage/v1.18.2...storage/v1.19.0) (2022-01-25)
 
 

vendor/cloud.google.com/go/storage/internal/apiv2/doc.go

@@ -84,7 +84,7 @@ import (
 type clientHookParams struct{}
 type clientHook func(context.Context, clientHookParams) ([]option.ClientOption, error)
 
-const versionClient = "20220114"
+const versionClient = "20220202"
 
 func insertMetadata(ctx context.Context, mds ...metadata.MD) context.Context {
 	out, _ := metadata.FromOutgoingContext(ctx)