Bump tracing-gelf from 0.6.0 to 0.7.0

Bumps [tracing-gelf](https://github.com/hlb8122/tracing-gelf) from 0.6.0 to 0.7.0.
- [Release notes](https://github.com/hlb8122/tracing-gelf/releases)
- [Commits](hlbarber/tracing-gelf@v0.6.0...v0.7.0)

---
updated-dependencies:
- dependency-name: tracing-gelf
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Cargo.lock

@@ -25,7 +25,7 @@ url = "2.1.1"
 warp = {version = "0.3.1", features = ["tls"]}
 tracing = "0.1"
 tracing-futures = "0.2"
-tracing-gelf = { version = "0.6", optional = true }
+tracing-gelf = { version = "0.7", optional = true }
 tracing-subscriber = { version = "0.3", features = ["fmt", "json"] }
 tracing-appender = "0.2"
 tokio = { version = "^1.4", features = ["rt-multi-thread", "time", "sync", "rt", "signal", "test-util"] }

explorer/Cargo.toml

@@ -47,7 +47,7 @@ time = { version = "0.3", features = ["macros"] }
 thiserror = "1.0.30"
 tracing = "0.1"
 tracing-futures = "0.2"
-tracing-gelf = { version = "0.6", optional = true }
+tracing-gelf = { version = "0.7", optional = true }
 # TODO unpin this when cross for ARM targets is fixed: https://github.com/cross-rs/cross/pull/591
 tracing-journald = { version = "=0.2.0", optional = true }
 tracing-subscriber = { version = "0.3", features = ["fmt", "json", "time"] }