chore(deps): bump tonic from 0.6.2 to 0.8.2

Bumps [tonic](https://github.com/hyperium/tonic) from 0.6.2 to 0.8.2.
- [Release notes](https://github.com/hyperium/tonic/releases)
- [Changelog](https://github.com/hyperium/tonic/blob/master/CHANGELOG.md)
- [Commits](hyperium/tonic@v0.6.2...v0.8.2)

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

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

explorer/Cargo.toml

@@ -31,7 +31,7 @@ tracing-appender = "0.2"
 tokio = { version = "^1.4", features = ["rt-multi-thread", "time", "sync", "rt", "signal", "test-util"] }
 tokio-stream = { version = "0.1.4", features = ["sync"] }
 tokio-util = { version = "0.6.0", features = ["time"] }
-tonic = "0.4"
+tonic = "0.8"
 multiaddr = { package = "parity-multiaddr", version = "0.11" }
 rand = "0.8.5"
 rand_chacha = "0.3.0"

jormungandr/Cargo.toml

@@ -55,7 +55,7 @@ tracing-appender = "0.2"
 tokio = { version = "^1.15", features = ["rt-multi-thread", "time", "sync", "rt", "signal", "test-util"] }
 tokio-stream = { version = "0.1.4", features = ["sync"] }
 tokio-util = { version = "0.6.0", features = ["time"] }
-tonic = "0.6"
+tonic = "0.8"
 lru = "0.7"
 warp = { version = "0.3.2", features = ["tls"] }
 serde_with = { version = "1.12", features = ["macros"] }

testing/jormungandr-automation/Cargo.toml

@@ -7,7 +7,7 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-tonic = "0.6"
+tonic = "0.8"
 prost = "0.9"
 tokio = { version = "1.15", features = ["macros","rt","rt-multi-thread"] }
 tokio-stream = "0.1"

testing/jormungandr-integration-tests/Cargo.toml

@@ -5,7 +5,7 @@ authors = [ "dev@iohk.io" ]
 edition = "2021"
 
 [dependencies]
-tonic = "0.6"
+tonic = "0.8"
 bech32 = "0.7"
 prost = "0.9"
 tokio = { version = "1.15", features = ["macros", "time"] }