chore: upgrade crate versions

* mithril-aggregator from `0.8.20` to `0.8.21`
* mithril-client-cli from `0.12.38` to `0.12.39`
* mithril-relay from `0.2.1` to `0.2.2`
* mithril-signer from `0.3.13` to `0.3.14`
* mithril-test-lab/mithril-devnet/VERSION from `0.4.22` to `0.4.23`

Author: jpraynaud

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "mithril-aggregator"
-version = "0.8.20"
+version = "0.8.21"
 description = "A Mithril Aggregator server"
 authors = { workspace = true }
 edition = { workspace = true }

mithril-aggregator/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "mithril-client-cli"
-version = "0.12.38"
+version = "0.12.39"
 description = "A Mithril Client"
 authors = { workspace = true }
 edition = { workspace = true }

mithril-client-cli/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "mithril-relay"
-version = "0.2.1"
+version = "0.2.2"
 description = "A Mithril relay"
 authors = { workspace = true }
 edition = { workspace = true }

mithril-relay/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "mithril-signer"
-version = "0.3.13"
+version = "0.3.14"
 description = "A Mithril Signer"
 authors = { workspace = true }
 edition = { workspace = true }

mithril-signer/Cargo.toml

@@ -1,2 +1,2 @@
-0.4.22
+0.4.23