scylla-macros: Add dev-dep on scylla and scylla-cql

This will allow us to run doctests after moving doc comments of
derive macros into this crate.

Interestingly, this change causes a warning about unnecessary
unwrap_or_else in the scylla crate. I did not investigate why this
happens (or perhaps more interestingly: why it didn't happen before).

Author: Lorak-mmk

Cargo.lock.msrv

@@ -21,3 +21,12 @@ proc-macro2 = "1.0"
 [lints.rust]
 unnameable_types = "warn"
 unreachable_pub = "warn"
+
+# When bumping major version of scylla / scylla-cql, those dependencies
+# also need to be updated. Fortunately Cargo will yell very loudly if that
+# is not done.
+# When bumping minor versions of scylla / scylla-cql nothing bad will happen
+# if we forget to update versions here.
+[dev-dependencies]
+scylla = { version = "0.15.0", path = "../scylla"}
+scylla-cql = { version = "0.4.0", path = "../scylla-cql"}

scylla-macros/Cargo.toml

@@ -802,6 +802,7 @@ impl Session {
         #[cfg(not(feature = "unstable-cloud"))]
         let cloud_known_nodes: Option<Vec<InternalKnownNode>> = None;
 
+        #[allow(clippy::unnecessary_literal_unwrap)]
         let known_nodes = cloud_known_nodes
             .unwrap_or_else(|| known_nodes.into_iter().map(|node| node.into()).collect());