feat: Add pre-commit hooks for formatting and linting

pre-commit hooks run right before the commit is created to prevent
common mistakes and streamline development. To make `patch-hub` more
robust as a project, add two hooks: one for formatting (`cargo fmt`) and
linting (`cargo clippy`).

Thanks-to: OJarrisonn <[email protected]>
Thanks-to: Lorenzo Bertin Salvador <[email protected]>
Signed-off-by: David Tadokoro <[email protected]>

Author: davidbtadokoro

.pre-commit-config.yaml

@@ -0,0 +1,23 @@
+repos:
+  - repo: local
+    hooks:
+      # Formatter
+      - id: rustfmt
+        name: rustfmt
+        language: rust
+        entry: cargo fmt
+        args: ["--all"]
+        types: [rust]
+        pass_filenames: false
+      # Linter
+      - id: clippy
+        name: clippy
+        language: rust
+        entry: cargo clippy
+        args: [
+          "--all-features", "--all-targets", "--tests",
+          "--", "--allow=clippy::too-many-arguments", "--deny=warnings",
+          "--deny=clippy::map_unwrap_or", "--deny=unconditional_recursion"
+        ]
+        types: [rust]
+        pass_filenames: false