fix: use #[derive(Default)] for BuildContext (#368)

Fixing cargo clippy error

Author: PolyProgrammist

cargo-near-build/src/types/near/build/input/mod.rs

@@ -2,10 +2,13 @@
 use std::io::IsTerminal;
 
 #[cfg(feature = "docker")]
-#[derive(Debug, Clone, Copy)]
+#[derive(Debug, Clone, Copy, Default)]
 pub enum BuildContext {
+    #[default]
     Build,
-    Deploy { skip_git_remote_check: bool },
+    Deploy {
+        skip_git_remote_check: bool,
+    },
 }
 
 /// argument of [`build_with_cli`](crate::build_with_cli) function

cargo-near-build/src/types/near/docker_build/mod.rs

@@ -28,12 +28,6 @@ pub struct Opts {
     pub context: BuildContext,
 }
 
-impl Default for BuildContext {
-    fn default() -> Self {
-        Self::Build
-    }
-}
-
 pub const WARN_BECOMES_ERR: &str =
     "This WARNING becomes a hard ERROR when deploying contract with docker.";