fix(deps): update rust crate diesel to 2.1.6

Cargo.lock

@@ -241,9 +241,9 @@ dependencies = [
 
 [[package]]
 name = "diesel"
-version = "2.1.5"
+version = "2.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "03fc05c17098f21b89bc7d98fe1dd3cce2c11c2ad8e145f2a44fe08ed28eb559"
+checksum = "ff236accb9a5069572099f0b350a92e9560e8e63a9b8d546162f4a5e03026bb2"
 dependencies = [
  "bitflags 2.3.1",
  "byteorder",

Cargo.toml

@@ -6,7 +6,7 @@ version = "0.1.0"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-diesel = {version = "2.1.5", features = ["postgres"]}
+diesel = {version = "2.1.6", features = ["postgres"]}
 diesel_logger = "0.3.0"
 diesel_migrations = "2.1.0"
 lazy_static = "1.4.0"