feat: Drop support for Python 3.7

Jenkinsfile

@@ -7,15 +7,7 @@ parallel(
             env = [
                 // We skip auto-versioning on Python 3, it will happen on the Python 2 block below
                 'DISABLE_AUTO_VERSION=1',
-                'PYTHON=python3.7',
-            ]
-        }
-    },
-    python2: {
-        indy {
-            base = 'ubuntu-2018.12.18'
-            env = [
-                'PYTHON=python2',
+                'PYTHON=python3.9',
             ]
         }
     },

setup.cfg

@@ -1,4 +1,5 @@
 
 [indy]
 pypi-index=https://artifactory.nerdwallet.io/artifactory/api/pypi/pypi-public-test/simple/
-python=python3.7
+python=python3.9
+supported_runtimes=python3.9

setup.py

@@ -19,8 +19,8 @@
     install_requires=install_requires,
     packages=find_packages('src'),
     package_dir={'': 'src'},
-    author='Evan Borgstrom',
-    author_email='eborgstrom@nerdwallet.com',
+    author='NerdWallet',
+    author_email='vkotcherlakota@nerdwallet.com',
     license='Apache 2',
     description='High-level library for dispatching and responding to tasks via AWS Kinesis',
     long_description=long_description,
@@ -32,9 +32,7 @@
     },
     classifiers=[
         "Development Status :: 4 - Beta",
-        "Programming Language :: Python :: 3.6",
-        "Programming Language :: Python :: 3.7",
-        "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
         "Intended Audience :: Developers",
         "License :: OSI Approved :: Apache Software License",
         "Natural Language :: English",