scylla-cql: Depend on exact version of scylla-macros

This allows doc(hidden) APIs used by macros to be changed.
Without it, we would need to consider the possibility of newer
scylla-macros being used with older scylla-cql, so those doc(hidden)
APIs would need to adhere to semver.
Keeping them semver-compatible would be difficult than the rest of the
API because semver-checks (correctly) ignore doc(hidden) items.

Author: Lorak-mmk

scylla-cql/Cargo.toml

@@ -11,7 +11,7 @@ categories = ["database"]
 license = "MIT OR Apache-2.0"
 
 [dependencies]
-scylla-macros = { version = "0.7.0", path = "../scylla-macros" }
+scylla-macros = { version = "=0.7.0", path = "../scylla-macros" }
 byteorder = "1.3.4"
 bytes = "1.0.1"
 tokio = { version = "1.34", features = ["io-util", "time"] }