Add Dependabot, Update Dependencies and Workflows (#1440)

Build may fail because of some major dependency updates. Needs changes,
changes/fixes welcomed.

Main goal is keeping all things up-to-date.

---------

Co-authored-by: weishu <twsxtd@gmail.com>

userspace/ksud/src/boot_patch.rs

@@ -72,7 +72,7 @@ fn parse_kmi_from_modules() -> Result<String> {
     let output = Command::new("modinfo")
         .arg("/vendor/lib/modules/fips140.ko")
         .output()?;
-    for line in output.stdout.lines().flatten() {
+    for line in output.stdout.lines().map_while(Result::ok) {
         if line.starts_with("vermagic") {
             return parse_kmi(&line);
         }

userspace/ksud/src/su.rs

@@ -217,7 +217,7 @@ pub fn root_shell() -> Result<()> {
         let name = &matches.free[free_idx];
         uid = unsafe {
             #[cfg(target_arch = "aarch64")]
-            let pw = libc::getpwnam(name.as_ptr() as *const u8).as_ref();
+            let pw = libc::getpwnam(name.as_ptr()).as_ref();
             #[cfg(target_arch = "x86_64")]
             let pw = libc::getpwnam(name.as_ptr() as *const i8).as_ref();