Fix publishing (#84)

Fix publishing with cargo release

1. Fix version specifications for in-repo packages in workspace Cargo.toml
2. Don't release butane_test_helper
3. Don't specify version for butane_test_helper when referencing it. This allows butane_core to be published despite the circular dev-dependency. See rust-lang/cargo#7333

Author: Electron100

Cargo.toml

@@ -14,9 +14,10 @@ members = [
 edition = "2021"
 
 [workspace.dependencies]
-butane = { path = "butane" }
+butane = { version = "0.6", path = "butane" }
 butane_core = { version = "0.6", path = "butane_core" }
-butane_test_helper = { version = "0.6", path = "butane_test_helper" }
+butane_codegen = { version = "0.6", path = "butane_codegen" }
+butane_test_helper = { path = "butane_test_helper" }
 cfg-if = "^1.0"
 chrono = { version = "0.4", default-features = false, features = [
   "serde",

butane/Cargo.toml

@@ -27,7 +27,7 @@ tls = ["butane_core/tls"]
 uuid = ["butane_codegen/uuid", "butane_core/uuid"]
 
 [dependencies]
-butane_codegen = { path = "../butane_codegen" }
+butane_codegen = { workspace = true }
 butane_core = { workspace = true }
 
 [dev-dependencies]

butane_test_helper/Cargo.toml

@@ -17,3 +17,6 @@ libc = "0.2"
 once_cell = { workspace = true }
 postgres = { features = ["with-geo-types-0_7"], workspace = true }
 uuid = { features = ["v4"], workspace = true }
+
+[package.metadata.release]
+release = false