Set polkadot version in one place (#6095)

* rust 1.64 enables workspace properties

* add edition, repository and authors.

* of course, update the version in one place.

Co-authored-by: Andronik <write@reusable.software>

polkadot/parachain/test-parachains/Cargo.toml

@@ -1,9 +1,9 @@
 [package]
 name = "test-parachains"
-version = "0.9.33"
-authors = ["Parity Technologies <admin@parity.io>"]
 description = "Integration tests using the test-parachains"
-edition = "2021"
+version.workspace = true
+authors.workspace = true
+edition.workspace = true
 
 [dependencies]
 tiny-keccak = { version = "2.0.2", features = ["keccak"] }