Update CHANGES.md

CHANGES.md

@@ -6,10 +6,12 @@
 - Update protobuf requirement from <4.26,>=3.13 to >=3.13,<5.27 #85
 - Update pytest requirement from <7.5,>=6.1 to >=6.1,<8.3 #83, #84, #91
 - Update pytest-cov requirement from <4.2,>=2.10 to >=2.10,<5.1 #87
+- Update pytest-env requirement from <1.2,==0.6 to ==1.1.3 #81
 - Update pytest-mock requirement from <3.13,>=3.11 to >=3.11,<3.15 #86
 - Update types-protobuf requirement from ==4.24.* to >=4.24,<5.27 #88, #89
 - Use codecov GH Action instead of Shell, use GH Secret #91
 - Set GH Action checkout depth to 2 to fix Codecov error #91
+- Dropped Python 3.7 so we can use pytest-env #81
 
 ## 0.13 (22/11/2023)