fix(deps): update rust crate serde_json to 1.0.115 (#52)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Cargo.lock

@@ -565,9 +565,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.114"
+version = "1.0.115"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c5f09b1bd632ef549eaa9f60a1f8de742bdbc698e6cee2095fc84dde5f549ae0"
+checksum = "12dc5c46daa8e9fdf4f5e71b6cf9a53f2487da0e86e55808e2d35539666497dd"
 dependencies = [
  "itoa",
  "ryu",

healthchecks/Cargo.toml

@@ -18,7 +18,7 @@ rust-version = "1.64.0"
 thiserror = ">=1.0.2"
 serde = { version = "1.0.197", default-features = false }
 serde_derive = "1.0.197"
-serde_json = "1.0.114"
+serde_json = "1.0.115"
 ureq = { version = "2.9.6", features = ["json"] }
 uuid.workspace = true