Fix all mismatched_lifetime_syntaxes warnings (#2727)

asyncgit/src/lib.rs

@@ -10,6 +10,7 @@ It wraps libraries like git2 and gix.
 
 #![forbid(missing_docs)]
 #![deny(
+	mismatched_lifetime_syntaxes,
 	unused_imports,
 	unused_must_use,
 	dead_code,

asyncgit/src/sync/remotes/mod.rs

@@ -120,7 +120,7 @@ pub fn get_default_remote(repo_path: &RepoPath) -> Result<String> {
 /// and Err if there was a problem finding the branch
 fn get_current_branch(
 	repo: &Repository,
-) -> Result<Option<git2::Branch>> {
+) -> Result<Option<git2::Branch<'_>>> {
 	for b in repo.branches(None)? {
 		let branch = b?.0;
 		if branch.is_head() {

asyncgit/src/sync/reword.rs

@@ -62,7 +62,7 @@ pub fn reword(
 /// and Err if there was a problem finding the branch
 fn get_current_branch(
 	repo: &Repository,
-) -> Result<Option<git2::Branch>> {
+) -> Result<Option<git2::Branch<'_>>> {
 	for b in repo.branches(None)? {
 		let branch = b?.0;
 		if branch.is_head() {