fix(ci): remove superfluous lifetimes (#248)

lifetimes that were provided in the function parameters but not in the
return values led to errors while running cargo check. remove these
lifetimes since they can be elided automatically

src/db/group.rs

@@ -206,7 +206,7 @@ impl Group {
     }
 
     #[cfg(feature = "_merge")]
-    pub(crate) fn find_group<'a>(&'a self, path: &Vec<Uuid>) -> Option<&Group> {
+    pub(crate) fn find_group(&self, path: &Vec<Uuid>) -> Option<&Group> {
         let path: Vec<String> = path.iter().map(|p| p.to_string()).collect();
         let node_ref = match self.get_by_uuid(&path) {
             Some(n) => n,
@@ -219,7 +219,7 @@ impl Group {
     }
 
     #[cfg(feature = "_merge")]
-    pub(crate) fn find_entry<'a>(&'a self, path: &Vec<Uuid>) -> Option<&Entry> {
+    pub(crate) fn find_entry(&self, path: &Vec<Uuid>) -> Option<&Entry> {
         let path: Vec<String> = path.iter().map(|p| p.to_string()).collect();
         let node_ref = match self.get_by_uuid(&path) {
             Some(n) => n,
@@ -232,7 +232,7 @@ impl Group {
     }
 
     #[cfg(feature = "_merge")]
-    pub(crate) fn find_entry_mut<'a>(&'a mut self, path: &Vec<Uuid>) -> Option<&mut Entry> {
+    pub(crate) fn find_entry_mut(&mut self, path: &Vec<Uuid>) -> Option<&mut Entry> {
         let path: Vec<String> = path.iter().map(|p| p.to_string()).collect();
         let node_ref = match self.get_by_uuid_mut(&path) {
             Some(n) => n,
@@ -245,7 +245,7 @@ impl Group {
     }
 
     #[cfg(feature = "_merge")]
-    pub(crate) fn find_group_mut<'a>(&'a mut self, path: &Vec<Uuid>) -> Option<&mut Group> {
+    pub(crate) fn find_group_mut(&mut self, path: &Vec<Uuid>) -> Option<&mut Group> {
         let path: Vec<String> = path.iter().map(|p| p.to_string()).collect();
         let node_ref = match self.get_by_uuid_mut(&path) {
             Some(n) => n,