chore(deps): update module github.com/googleapis/gax-go/v2 to v2.3.0 (#…

…1065)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [github.com/googleapis/gax-go/v2](https://togithub.com/googleapis/gax-go) | require | minor | `v2.2.0` -> `v2.3.0` |

---

### Release Notes

<details>
<summary>googleapis/gax-go</summary>

### [`v2.3.0`](https://togithub.com/googleapis/gax-go/compare/v2.2.0...v2.3.0)

[Compare Source](https://togithub.com/googleapis/gax-go/compare/v2.2.0...v2.3.0)

</details>

---

### Configuration

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go.mod

@@ -4,7 +4,7 @@ require (
 	cloud.google.com/go v0.100.2
 	github.com/golang/protobuf v1.5.2
 	github.com/google/go-cmp v0.5.7
-	github.com/googleapis/gax-go/v2 v2.2.0
+	github.com/googleapis/gax-go/v2 v2.3.0
 	github.com/googleapis/grpc-fallback-go v0.1.4
 	github.com/gorilla/mux v1.8.0
 	github.com/iancoleman/strcase v0.2.0

go.sum

@@ -199,8 +199,9 @@ github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+
 github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk=
 github.com/googleapis/gax-go/v2 v2.1.0/go.mod h1:Q3nei7sK6ybPYH7twZdmQpAd1MKb7pfu6SK+H1/DsU0=
 github.com/googleapis/gax-go/v2 v2.1.1/go.mod h1:hddJymUZASv3XPyGkUpKj8pPO47Rmb0eJc8R6ouapiM=
-github.com/googleapis/gax-go/v2 v2.2.0 h1:s7jOdKSaksJVOxE0Y/S32otcfiP+UQ0cL8/GTKaONwE=
 github.com/googleapis/gax-go/v2 v2.2.0/go.mod h1:as02EH8zWkzwUoLbBaFeQ+arQaj/OthfcblKl4IGNaM=
+github.com/googleapis/gax-go/v2 v2.3.0 h1:nRJtk3y8Fm770D42QV6T90ZnvFZyk7agSo3Q+Z9p3WI=
+github.com/googleapis/gax-go/v2 v2.3.0/go.mod h1:b8LNqSzNabLiUpXKkY7HAR5jr6bIT99EXz9pXxye9YM=
 github.com/googleapis/grpc-fallback-go v0.1.4 h1:tEDqZnKGKQpYrmEuu3VVBTw3pijHJsKz/Lu2U0L9AV0=
 github.com/googleapis/grpc-fallback-go v0.1.4/go.mod h1:R7P0bK21nlCMc4hdtiwmXMzKXThllMim0cUZvClg6XQ=
 github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=