Remove chrono, bump deps (#59)

Author: JoshKarpel

.github/workflows/pre-commit.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        toolchain: [ stable ]
+        toolchain: [ nightly ]
 
     runs-on: ubuntu-latest
 

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## 0.2.2
 
+### Changed
+
+- Dropped `chrono` dependency.
+
 ## 0.2.1
 
 ### Added