feat: publish 0.3 versions of many crates

packages/core/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "dioxus-core"
-version = "0.2.1"
+version = "0.3.0"
 authors = ["Jonathan Kelley"]
 edition = "2018"
 description = "Core functionality for Dioxus - a concurrent renderer-agnostic Virtual DOM for interactive user experiences"
@@ -38,10 +38,10 @@ log = "0.4.17"
 serde = { version = "1", features = ["derive"], optional = true }
 
 [dev-dependencies]
-tokio = { version = "*", features = ["full"] }
+tokio = { version = "1", features = ["full"] }
 dioxus = { path = "../dioxus" }
 pretty_assertions = "1.3.0"
 
 [features]
 default = []
-serialize = ["serde"]
+serialize = ["serde"]