build(deps): bump flate2 from 1.0.20 to 1.0.21 (#1230)

Bumps [flate2](https://github.com/rust-lang/flate2-rs) from 1.0.20 to 1.0.21.
- [Release notes](https://github.com/rust-lang/flate2-rs/releases)
- [Commits](rust-lang/flate2-rs@1.0.20...1.0.21)

---
updated-dependencies:
- dependency-name: flate2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

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

Cargo.lock

@@ -206,9 +206,9 @@ checksum = "37ab347416e802de484e4d03c7316c48f1ecb56574dfd4a46a80f173ce1de04d"
 
 [[package]]
 name = "flate2"
-version = "1.0.20"
+version = "1.0.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cd3aec53de10fe96d7d8c565eb17f2c687bb5518a2ec453b5b1252964526abe0"
+checksum = "80edafed416a46fb378521624fab1cfa2eb514784fd8921adbe8a8d8321da811"
 dependencies = [
  "cfg-if",
  "crc32fast",

linkerd/app/integration/Cargo.toml

@@ -41,5 +41,5 @@ webpki = "0.21"
 tracing-subscriber = { version = "0.2", default-features = false, features = ["fmt"] }
 
 [dev-dependencies]
-flate2 = { version = "1.0.1", default-features = false, features = ["rust_backend"] }
+flate2 = { version = "1.0.21", default-features = false, features = ["rust_backend"] }
 linkerd-tracing = { path = "../../tracing", features = ["ansi"] }