Bump serde from 1.0.124 to 1.0.126 (#9099)

Bumps [serde](https://github.com/serde-rs/serde) from 1.0.124 to 1.0.126.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.124...v1.0.126)

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

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

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

substrate/utils/frame/try-runtime/cli/Cargo.toml

@@ -15,7 +15,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 log = "0.4.8"
 parity-scale-codec = { version = "2.0.0" }
-serde = "1.0.0"
+serde = "1.0.126"
 structopt = "0.3.8"
 
 sc-service = { version = "0.10.0-dev", default-features = false, path = "../../../../client/service" }