chore: Update module github.com/golang/protobuf to v1.5.3 (#1111)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [github.com/golang/protobuf](https://togithub.com/golang/protobuf) | require | patch | `v1.5.2` -> `v1.5.3` |

---

### Release Notes

<details>
<summary>golang/protobuf</summary>

### [`v1.5.3`](https://togithub.com/golang/protobuf/releases/tag/v1.5.3)

[Compare Source](https://togithub.com/golang/protobuf/compare/v1.5.2...v1.5.3)

Notable changes

\*( [#&#8203;1363](https://togithub.com/golang/protobuf/issues/1363)) jsonpb: accept 'null' as a valid representation of NullValue in unmarshal

</details>

---

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go.mod

@@ -7,7 +7,7 @@ require (
 	cloud.google.com/go/longrunning v0.4.1
 	github.com/bmatcuk/doublestar/v4 v4.6.0
 	github.com/gertd/go-pluralize v0.2.1
-	github.com/golang/protobuf v1.5.2
+	github.com/golang/protobuf v1.5.3
 	github.com/google/go-cmp v0.5.9
 	github.com/jhump/protoreflect v1.10.1
 	github.com/lithammer/dedent v1.1.0

go.sum

@@ -27,8 +27,8 @@ github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvq
 github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8=
 github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
-github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
-github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
+github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=
+github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=