Add limbo_ext_tests to crates

extensions/tests/Cargo.toml

@@ -5,6 +5,7 @@ authors.workspace = true
 edition.workspace = true
 license.workspace = true
 repository.workspace = true
+description = "Limbo extension tests"
 
 [lib]
 crate-type = ["cdylib", "lib"]

scripts/publish-crates.sh

@@ -2,6 +2,7 @@
 
 cargo publish -p limbo_macros
 cargo publish -p limbo_ext
+cargo publish -p limbo_ext_tests
 cargo publish -p limbo_completion
 cargo publish -p limbo_crypto
 cargo publish -p limbo_percentile