Move gc feature to default so users can opt out

Author: tolumide-ng

crates/c-api/Cargo.toml

@@ -21,7 +21,7 @@ doctest = false
 
 [dependencies]
 env_logger = { workspace = true, optional = true }
-wasmtime = { workspace = true, features = ['runtime', 'gc', 'std'] }
+wasmtime = { workspace = true, features = ['runtime', 'std'] }
 wasmtime-c-api-macros = { workspace = true }
 log = { workspace = true }
 tracing = { workspace = true }
@@ -42,6 +42,7 @@ futures = { workspace = true, optional = true }
 
 [features]
 # WASMTIME_FEATURE_LIST
+default = ["gc"]
 async = ['wasmtime/async', 'futures']
 profiling = ["wasmtime/profiling"]
 cache = ["wasmtime/cache"]