Fix slack link

Author: LilSpazJoekp

.github/CONTRIBUTING.rst

@@ -128,6 +128,6 @@ Please also read `Contributing to PRAW`_.
 
 .. _see here: https://praw.readthedocs.io/en/latest/package_info/contributing.html#install-development-dependencies
 
-.. _slack: https://join.slack.com/t/praw/shared_invite/enQtOTUwMDcxOTQ0NzY5LWVkMGQ3ZDk5YmQ5MDEwYTZmMmJkMTJkNjBkNTY3OTU0Y2E2NGRlY2ZhZTAzMWZmMWRiMTMwYjdjODkxOGYyZjY
+.. _slack: https://join.slack.com/t/praw/shared_invite/zt-3d5lbcs51-VB1xRhRok0OZ1vyYquWb2A
 
 .. _unreleased: https://github.com/praw-dev/praw/blob/main/CHANGES.rst#unreleased

.github/ISSUE_TEMPLATE/config.yml

@@ -8,4 +8,4 @@ contact_links:
     url: https://redditdev.reddit.com
   - name: Official praw-dev Slack
     about: For more real-time help, feel free to join our Slack.
-    url: https://join.slack.com/t/praw/shared_invite/enQtOTUwMDcxOTQ0NzY5LWVkMGQ3ZDk5YmQ5MDEwYTZmMmJkMTJkNjBkNTY3OTU0Y2E2NGRlY2ZhZTAzMWZmMWRiMTMwYjdjODkxOGYyZjY
+    url: https://join.slack.com/t/praw/shared_invite/zt-3d5lbcs51-VB1xRhRok0OZ1vyYquWb2A

README.rst

@@ -128,7 +128,7 @@ please tag submissions with *[PRAW]*. Please perform a search on the subreddit f
 see if anyone has similar questions.
 
 Real-time chat can be conducted via the `PRAW Slack Organization
-<https://join.slack.com/t/praw/shared_invite/enQtOTUwMDcxOTQ0NzY5LWVkMGQ3ZDk5YmQ5MDEwYTZmMmJkMTJkNjBkNTY3OTU0Y2E2NGRlY2ZhZTAzMWZmMWRiMTMwYjdjODkxOGYyZjY>`_
+<https://join.slack.com/t/praw/shared_invite/zt-3d5lbcs51-VB1xRhRok0OZ1vyYquWb2A>`_
 (please create an issue if that invite link has expired).
 
 Please do not directly message any of the contributors via Reddit, email, or Slack