Update Rust to 1.96 and bump all dependencies (#61)

* Update Rust to 1.96 and bump all dependencies

* Fix Amazon Linux 2 build: install pip and wheel

* Fix arm64 docker build missing --platform flag

* Bump version to 2.2.0 and update dependency pins

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: jeremiahlukus

.gitignore

@@ -7,4 +7,5 @@ outputs.json
 python/crypteia/build
 python/crypteia/src/*.egg-info
 runteststest
+awskeys.txt
 .DS_Store

CHANGELOG.md

@@ -7,6 +7,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+## [2.2.0] - 2026-06-04
+
+### Changed
+
+- Update Rust toolchain to 1.96
+- Bump all Rust dependencies (anyhow, tokio, futures, aws-config, aws-sdk-ssm, libc, lazy_static, serde_json)
+
+### Fixed
+
+- ARM64 docker build missing `--platform` flag
+- Amazon Linux 2 build: install pip and wheel
+
 ## [2.1.0] - 2025-12-02
 
 ### Added