Drop support for Python 3.6

Author: amotl

.github/workflows/tests.yml

@@ -25,8 +25,8 @@ jobs:
 
     strategy:
       matrix:
-        os: [ "ubuntu-20.04" ]
-        python-version: [ "3.6", "3.7", "3.8", "3.9", "3.10", "3.11" ]
+        os: [ "ubuntu-latest" ]
+        python-version: [ "3.7", "3.8", "3.9", "3.10", "3.11" ]
         grafana-version: [ "6.7.6", "7.5.17", "8.5.15", "9.2.7" ]
 
     env:

CHANGES.rst

@@ -15,6 +15,7 @@ in progress
   - Use cache database location within user folder
   - c cache database location to log
   - Reduce default cache TTL from five minutes to 60 seconds
+- Drop support for Python 3.6
 
 2022-06-19 0.13.4
 =================

setup.py

@@ -57,7 +57,6 @@
         "Operating System :: Unix",
         "Operating System :: MacOS",
         "Programming Language :: Python",
-        "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",