Bump version to 0.22.2

tcharding · tcharding · commit 12e67f1995d2 · 2022-12-06T08:14:46.000+11:00
Done after backport to fix unsoundness issue.
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# 0.22.2 - 2022-12-05
+
+* Backport [fix soundness issue with `preallocated_gen_new`](https://github.com/rust-bitcoin/rust-secp256k1/pull/548)
+
 # 0.22.1 - 2022-03-10
 
 * [Reintroduce](https://github.com/rust-bitcoin/rust-secp256k1/pull/417) accidentally removed possibility to create `SharedSecret` from byte serialization
diff --git a/Cargo.toml b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "secp256k1"
-version = "0.22.1"
+version = "0.22.2"
 authors = [ "Dawid Ciężarkiewicz <dpc@ucore.info>",
             "Andrew Poelstra <apoelstra@wpsoftware.net>" ]
 license = "CC0-1.0"
