Drop `Python 3.6` support and pin all requirements. (#123)

* Drop `Python 3.6` official support.

* Pin all requirements.

* Change dependabot target branch.

.github/dependabot.yml

@@ -3,4 +3,5 @@ updates:
   - package-ecosystem: "pip"
     directory: "/"
     schedule:
-      interval: "weekly"
+      interval: "weekly"
+    target-branch: "requirements"

.github/workflows/test-package.yml

@@ -8,14 +8,14 @@ on:
 jobs:
 
   test:
-  
+
     runs-on: ubuntu-latest
-    
+
     strategy:
       fail-fast: false
       matrix:
         platform: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ['3.6', '3.7', '3.8', '3.9', '3.10']
+        python-version: ['3.7', '3.8', '3.9', '3.10']
 
     steps:
 

requirements-test.txt

@@ -1,5 +1,5 @@
-codecov
-coverage
-flake8
-orjson
-tox
+codecov == 2.1.12
+coverage == 6.5.0
+flake8 == 5.0.4
+orjson == 3.8.0
+tox == 3.26.0

requirements.txt

@@ -1,12 +1,12 @@
-ftfy ~= 6.0.0
-mailchecker ~= 5.0.1
-openpyxl ~= 3.0.10
-phonenumbers ~= 8.12.56
-python-dateutil ~= 2.8.2
-python-fsutil ~= 0.7.0
-python-slugify ~= 6.1.2
-pyyaml ~= 6.0
-requests ~= 2.27.1
-toml ~= 0.10.2
-xlrd ~= 2.0.1
-xmltodict ~= 0.13.0
+ftfy == 6.1.1
+mailchecker == 5.0.2
+openpyxl == 3.0.10
+phonenumbers == 8.12.56
+python-dateutil == 2.8.2
+python-fsutil == 0.7.0
+python-slugify == 6.1.2
+pyyaml == 6.0
+requests == 2.28.1
+toml == 0.10.2
+xlrd == 2.0.1
+xmltodict == 0.13.0

setup.py

@@ -122,7 +122,6 @@ setup(
         "Natural Language :: English",
         "Operating System :: OS Independent",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",

tox.ini

@@ -1,10 +1,9 @@
 [tox]
 envlist =
-    py{36,37,38,39,310},
+    py{37,38,39,310},
 
 [testenv]
 basepython =
-    py36: python3.6
     py37: python3.7
     py38: python3.8
     py39: python3.9