Bump version to 0.2.2

This change bumps the program's version to 0.2.2. The following notable
changes have been made since 0.2.1:
- Removed once_cell dependency

CHANGELOG.md

@@ -1,3 +1,8 @@
+0.2.2
+-----
+- Removed `once_cell` dependency
+
+
 0.2.1
 -----
 - Fixed wrong handling of root (`/`) subvolume in various sub-commands

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "btrfs-backup"
-version = "0.2.1"
+version = "0.2.2"
 authors = ["Daniel Mueller <deso@posteo.net>"]
 edition = "2021"
 license = "GPL-3.0-or-later"

src/snapshot.rs

@@ -50,8 +50,6 @@ const ENCODED_COMPONENT_SEPARATOR: &str = "_";
 
 /// The UTC time zone offset we use throughout the program.
 static UTC_OFFSET: LazyLock<UtcOffset> = LazyLock::new(|| {
-  // SANITY: Offset retrieval should always succeed given our
-  //         "soundness" setting above.
   UtcOffset::current_local_offset().expect("failed to inquire current local time offset")
 });