Add psycopg version to issue templates

Author: dvarrazzo

.github/ISSUE_TEMPLATE/problem-installing-psycopg2.md

@@ -18,7 +18,8 @@ If you have a question, such has "how do you do X with Python/PostgreSQL/psycopg
 - [ ] If install failed, I typed `pg_config` on the command line and I obtained an output instead of an error.
 
 **Please complete the following information:**
-- OS: 
+- OS:
+- Psycopg version:
 - Python version:
 - PostgreSQL version:
 - pip version

.github/ISSUE_TEMPLATE/problem-using-psycopg2.md

@@ -11,7 +11,8 @@ assignees: ''
 If you have a question, such has "how do you do X with Python/PostgreSQL/psycopg2" please [write to the mailing list](https://lists.postgresql.org/manage/) or [open a question](https://github.com/psycopg/psycopg2/discussions) instead.
 
 **Please complete the following information:**
-- OS: 
+- OS:
+- Psycopg version:
 - Python version:
 - PostgreSQL version:
 - pip version