Update some dependencies

Author: weiznich

Cargo.lock

@@ -17,24 +17,24 @@ diesel = { version = "2.0.0", default-features = false, features = ["i-implement
 async-trait = "0.1.51"
 futures = "0.3.17"
 tokio-postgres = { version = "0.7.2", optional = true}
-tokio = { version = "1.12.0", features = ["rt"], optional = true}
-mysql_async = { version = "0.29.0", optional = true}
-mysql_common = {version = "0.28.0", optional = true}
+tokio = { version = "1", optional = true}
+mysql_async = { version = "0.30.0", optional = true}
+mysql_common = {version = "0.29.0", optional = true}
 
 bb8 = {version = "0.8", optional = true}
 deadpool = {version = "0.9", optional = true}
 mobc = {version = "0.7", optional = true}
 
 [dev-dependencies]
-tokio = {version = "1.12.0", features = ["rt", "macros"]}
+tokio = {version = "1.12.0", features = ["rt", "macros", "rt-multi-thread"]}
 cfg-if = "1"
 chrono = "0.4"
-diesel = { version = "2.0.0-rc.1", default-features = false,  features = ["chrono"]}
+diesel = { version = "2.0.0", default-features = false,  features = ["chrono"]}
 
 [features]
 default = []
 mysql = ["diesel/mysql_backend", "mysql_async", "mysql_common"]
-postgres = ["diesel/postgres_backend", "tokio-postgres", "tokio", "tokio/rt-multi-thread"]
+postgres = ["diesel/postgres_backend", "tokio-postgres", "tokio"]
 
 [[test]]
 name = "integration_tests"