chore(deps): bump tonic from 0.7.1 to 0.7.2 (#12629)

* chore(deps): bump tonic from 0.7.1 to 0.7.2

Bumps [tonic](https://github.com/hyperium/tonic) from 0.7.1 to 0.7.2.
- [Release notes](https://github.com/hyperium/tonic/releases)
- [Changelog](https://github.com/hyperium/tonic/blob/master/CHANGELOG.md)
- [Commits](hyperium/tonic@v0.7.1...v0.7.2)

---
updated-dependencies:
- dependency-name: tonic
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

* Fix gcp_pubsub

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Bruce Guenter <bruce.guenter@datadoghq.com>

Cargo.toml

@@ -285,7 +285,7 @@ tikv-jemallocator = { version = "0.4.3", default-features = false, optional = tr
 tokio-postgres = { version = "0.7.6", default-features = false, features = ["runtime", "with-chrono-0_4"], optional = true }
 tokio-tungstenite = {version = "0.15.0", default-features = false, features = ["connect"], optional = true}
 toml = { version = "0.5.9", default-features = false }
-tonic = { version = "0.7.1", optional = true, default-features = false, features = ["transport", "codegen", "prost", "tls", "tls-roots", "compression"] }
+tonic = { version = "0.7.2", optional = true, default-features = false, features = ["transport", "codegen", "prost", "tls", "tls-roots", "compression"] }
 trust-dns-proto = { version = "0.21.0", default-features = false, features = ["dnssec"], optional = true }
 typetag = { version = "0.1.8", default-features = false }
 url = { version = "2.2.2", default-features = false, features = ["serde"] }

src/sources/gcp_pubsub.rs

@@ -236,7 +236,7 @@ impl PubsubSource {
             connection,
             |mut req: Request<()>| {
                 if let Some(credentials) = &self.credentials {
-                    let authorization = MetadataValue::from_str(&credentials.make_token())
+                    let authorization = MetadataValue::try_from(&credentials.make_token())
                         .map_err(|_| {
                             Status::new(
                                 Code::FailedPrecondition,