chore(ksud): enable clippy::all, clippy::pedantic && make clippy happy (#617)

* Revert "chore(ksud): bump ksud's deps (#585)"
* Because it may cause compilation errors.

This reverts commit c8020b2066.

* chore(ksud): remove unused Result

Signed-off-by: Tools-app <localhost.hutao@gmail.com>

* chore(ksud): enable clippy::all, clippy::pedantic && make clippy happy

https://rust-lang.github.io/rust-clippy/master/index.html#map_unwrap_or

https://rust-lang.github.io/rust-clippy/master/index.html#uninlined_format_args

https://rust-lang.github.io/rust-clippy/master/index.html#used_underscore_items

https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure_for_method_calls

https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pub_crate
...
and use some #![allow(...)] or #[allow(...)]

Signed-off-by: Tools-app <localhost.hutao@gmail.com>

---------

Signed-off-by: Tools-app <localhost.hutao@gmail.com>

userspace/ksud/src/apk_sign.rs

@@ -84,7 +84,7 @@ pub fn get_apk_signature(apk: &str) -> Result<(u32, String)> {
         return Err(anyhow::anyhow!("Unexpected v3 signature found!",));
     }
 
-    v2_signing.ok_or(anyhow::anyhow!("No signature found!"))
+    v2_signing.ok_or_else(|| anyhow::anyhow!("No signature found!"))
 }
 
 fn calc_cert_sha256(