feat: use jiff

Introduce jiff and use it to replace time in one simple case.

This is preparation for updating to gix 0.66, where time has been replaced by
jiff.

Author: jpgrayson

Cargo.lock

@@ -3,7 +3,7 @@ name = "stgit"
 version = "2.4.10"
 description = "Stack-based patch management for Git"
 edition = "2021"
-rust-version = "1.67.1"
+rust-version = "1.70"
 authors = [
   "Catalin Marinas <[email protected]>",
   "Peter Grayson <[email protected]>",
@@ -40,6 +40,7 @@ flate2 = "1"
 gix = { version = "0.64", default-features = false, features = ["command", "revision"] }
 indexmap = "2.1"
 is-terminal = "0.4"
+jiff = "0.1.10"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 strsim = "0.11"

Cargo.toml

@@ -45,9 +45,7 @@ pub(super) fn dispatch(repo: &gix::Repository, matches: &ArgMatches) -> Result<(
     let new_branchname = if let Some(name) = matches.get_one::<PartialRefName>("new-branch") {
         name
     } else {
-        let suffix = gix::date::Time::now_local_or_utc().format(time::macros::format_description!(
-            "[year][month][day]-[hour][minute][second]"
-        ));
+        let suffix = jiff::Zoned::now().strftime("%Y%m%d-%H%M%S");
         generated_branchname = PartialRefName::from_str(&format!("{current_branchname}-{suffix}"))
             .expect("valid partial reference name");
         &generated_branchname