Fix clippy

Author: s1341

frida-gum/src/module.rs

@@ -91,7 +91,7 @@ pub struct Module<'a> {
     _gum: &'a Gum,
 }
 
-impl<'a> Module<'a> {
+impl Module<'_> {
     pub fn obtain(gum: &Gum) -> Module {
         Module { _gum: gum }
     }

frida-gum/src/range_details.rs

@@ -64,7 +64,7 @@ pub struct FileMapping<'a> {
     phantom: PhantomData<&'a gum_sys::GumFileMapping>,
 }
 
-impl<'a> FileMapping<'a> {
+impl FileMapping<'_> {
     pub(crate) fn from_raw(file: *const gum_sys::GumFileMapping) -> Option<Self> {
         if file.is_null() {
             None

frida-gum/src/stalker/transformer.rs

@@ -204,7 +204,7 @@ impl<'a> Transformer<'a> {
     }
 }
 
-impl<'a> Drop for Transformer<'a> {
+impl Drop for Transformer<'_> {
     fn drop(&mut self) {
         unsafe { frida_gum_sys::g_object_unref(self.transformer as *mut c_void) }
     }