chore(deps): update rust crate diesel to 2.1.6 (#5570)

Author: oxide-renovate[bot]

Cargo.lock

@@ -209,7 +209,7 @@ db-macros = { path = "nexus/db-macros" }
 debug-ignore = "1.0.5"
 derive_more = "0.99.17"
 derive-where = "1.2.7"
-diesel = { version = "2.1.5", features = ["postgres", "r2d2", "chrono", "serde_json", "network-address", "uuid"] }
+diesel = { version = "2.1.6", features = ["postgres", "r2d2", "chrono", "serde_json", "network-address", "uuid"] }
 diesel-dtrace = { git = "https://github.com/oxidecomputer/diesel-dtrace", branch = "main" }
 dns-server = { path = "dns-server" }
 dns-service-client = { path = "clients/dns-service-client" }

Cargo.toml

@@ -38,7 +38,7 @@ crossbeam-utils = { version = "0.8.19" }
 crossterm = { version = "0.27.0", features = ["event-stream", "serde"] }
 crypto-common = { version = "0.1.6", default-features = false, features = ["getrandom", "std"] }
 der = { version = "0.7.8", default-features = false, features = ["derive", "flagset", "oid", "pem", "std"] }
-diesel = { version = "2.1.5", features = ["chrono", "i-implement-a-third-party-backend-and-opt-into-breaking-changes", "network-address", "postgres", "r2d2", "serde_json", "uuid"] }
+diesel = { version = "2.1.6", features = ["chrono", "i-implement-a-third-party-backend-and-opt-into-breaking-changes", "network-address", "postgres", "r2d2", "serde_json", "uuid"] }
 digest = { version = "0.10.7", features = ["mac", "oid", "std"] }
 either = { version = "1.11.0" }
 elliptic-curve = { version = "0.13.8", features = ["ecdh", "hazmat", "pem", "std"] }
@@ -145,7 +145,7 @@ crossbeam-utils = { version = "0.8.19" }
 crossterm = { version = "0.27.0", features = ["event-stream", "serde"] }
 crypto-common = { version = "0.1.6", default-features = false, features = ["getrandom", "std"] }
 der = { version = "0.7.8", default-features = false, features = ["derive", "flagset", "oid", "pem", "std"] }
-diesel = { version = "2.1.5", features = ["chrono", "i-implement-a-third-party-backend-and-opt-into-breaking-changes", "network-address", "postgres", "r2d2", "serde_json", "uuid"] }
+diesel = { version = "2.1.6", features = ["chrono", "i-implement-a-third-party-backend-and-opt-into-breaking-changes", "network-address", "postgres", "r2d2", "serde_json", "uuid"] }
 digest = { version = "0.10.7", features = ["mac", "oid", "std"] }
 either = { version = "1.11.0" }
 elliptic-curve = { version = "0.13.8", features = ["ecdh", "hazmat", "pem", "std"] }