Made installation of checker for format=uri-reference explicit (#2075)

Details:

* The checker for format=uri-reference so far was available because
  jupyter-events depends on it. That lead to the checker not being
  available on Windows with Python>=3.13 because there jupyter is
  not installed due to an issue.

  This change installs the checker explicitly in order not to depend
  on that anymore.

Signed-off-by: Andreas Maier <maiera@de.ibm.com>

Author: andy-maier

dev-requirements.txt

@@ -33,8 +33,8 @@ more-itertools>=4.0.0
 pytz>=2019.1,!=2024.2,!=2025.1,!=2025.2
 # Python's built-in zoneinfo module needs the tzdata package on Windows.
 tzdata>=2023.4; sys_platform == 'win32'
-# # rfc3986-validator is needed for jsonschema validation of format=uri-reference
-# rfc3986-validator>=0.1.1
+# rfc3986-validator is needed for jsonschema validation of format=uri-reference
+rfc3986-validator>=0.1.1
 
 # packaging is used by pytest, pip-check-reqs, sphinx
 packaging>=24.2

minimum-constraints-develop.txt

@@ -33,7 +33,7 @@ pytz==2019.1
 requests-mock==1.6.0
 requests-toolbelt==0.8.0
 tzdata==2023.4; sys_platform == 'win32'
-# rfc3986-validator==0.1.1
+rfc3986-validator==0.1.1
 
 # Unit test (indirect dependencies):
 # decorator: covered in direct deps for installation