Drop Python 3.6

Drops support for python 3.6 as the new hepdata-validator version no longer supports this.

.github/workflows/release.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: [ubuntu-latest]
     strategy:
       matrix:
-        python-version: [3.6]
+        python-version: [3.9]
     env:
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:

.github/workflows/tests.yml

@@ -26,7 +26,7 @@ jobs:
       matrix:
         os: [ubuntu-latest]
         root-version: ["6.24", "6.26"]
-        python-version: ["3.6", "3.7", "3.8", "3.9", "3.10"]
+        python-version: ["3.7", "3.8", "3.9", "3.10"]
         exclude:
           - root-version: "6.24"
             python-version: "3.10"

setup.py

@@ -28,7 +28,6 @@
         'Development Status :: 4 - Beta',
         'License :: OSI Approved :: MIT License',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
@@ -37,7 +36,7 @@
     keywords='HEPData physics OpenData',
     packages=find_packages(exclude=['contrib', 'docs', 'tests']),
     zip_safe=False,
-    python_requires='>=3.6',
+    python_requires='>=3.7',
     install_requires=DEPS,
     setup_requires=['pytest-runner', 'pytest-cov'],
     tests_require=[