Update Rust version, deps and workflow

- Update Rust to v1.65.0
- Update dependencies
- Updated workflow files
- Added some extra clippy checks
- Fixed some clippy checks

src/main.rs

@@ -12,9 +12,13 @@
     clippy::equatable_if_let,
     clippy::float_cmp_const,
     clippy::inefficient_to_string,
+    clippy::iter_on_empty_collections,
+    clippy::iter_on_single_items,
     clippy::linkedlist,
     clippy::macro_use_imports,
     clippy::manual_assert,
+    clippy::manual_instant_elapsed,
+    clippy::manual_string_new,
     clippy::match_wildcard_for_single_variants,
     clippy::mem_forget,
     clippy::string_add_assign,