Rewritten code to Python 3

- Docker baseimage change to alpine
- bumped all deps
- skip testing till py36 is available in CI

Change-Id: I7b0ca2b28e2c639645ea07e2b3adb21b857b2fe5
Related-PROD: PRODX-11711
Related-PROD: PRODX-14584
diff --git a/requirements.txt b/requirements.txt
index 6a957c7..91c004f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,26 +1,26 @@
-asn1crypto==0.24.0
-Authlib==0.15.2
-cachetools==3.0.0
-certifi==2020.12.5
-cffi==1.14.4
-chardet==3.0.4
-Click==7.0
-cryptography<3.4
-enum34==1.1.6
-Flask==1.0.2
-idna==2.7
-ipaddress==1.0.22
-itsdangerous==1.1.0
-Jinja2==2.10
-MarkupSafe==1.1.0
-prometheus-client==0.4.2
-pycparser==2.19
-pyOpenSSL==20.0.0
+asn1crypto==1.4.0
+Authlib==0.15.4
+cachetools==4.2.2
+certifi==2021.5.30
+cffi==1.14.5
+chardet==4.0.0
+click==8.0.1
+cryptography==3.4.7
+enum34==1.1.10
+Flask==2.0.1
+idna==2.10
+ipaddress==1.0.23
+itsdangerous==2.0.1
+Jinja2==3.0.1
+MarkupSafe==2.0.1
+prometheus-client==0.11.0
+pycparser==2.20
+pyOpenSSL==20.0.1
 PyYAML==5.4.1
-requests==2.23.0
-simple-salesforce==0.74.2
-simple-settings==0.13.0
-six==1.11.0
-urllib3==1.25.9
-uWSGI==2.0.17.1
-Werkzeug==0.14.1
+requests==2.25.1
+simple-salesforce==1.11.2
+simple-settings==1.0.0
+six==1.16.0
+urllib3==1.26.5
+uWSGI==2.0.19.1
+Werkzeug==2.0.1