fix Certbot acme dep (#8279)

certbot/CHANGELOG.md

@@ -15,6 +15,10 @@ Certbot adheres to [Semantic Versioning](https://semver.org/).
 ### Fixed
 
 * Fixed `server_name` case-sensitivity in the nginx plugin.
+* The minimum version of the `acme` library required by Certbot was corrected.
+  In the previous release, Certbot said it required `acme>=1.6.0` when it
+  actually required `acme>=1.8.0` to properly support removing contact
+  information from an ACME account.
 
 More details about these changes can be found on our GitHub repo.
 

certbot/local-oldest-requirements.txt

@@ -1,2 +1,2 @@
 # Remember to update setup.py to match the package versions below.
-acme[dev]==1.6.0
+acme[dev]==1.8.0

certbot/setup.py

@@ -36,7 +36,7 @@ version = meta['version']
 # specified here to avoid masking the more specific request requirements in
 # acme. See https://github.com/pypa/pip/issues/988 for more info.
 install_requires = [
-    'acme>=1.6.0',
+    'acme>=1.8.0',
     # We technically need ConfigArgParse 0.10.0 for Python 2.6 support, but
     # saying so here causes a runtime error against our temporary fork of 0.9.3
     # in which we added 2.6 support (see #2243), so we relax the requirement.