Update deps, allow Python 3.9, drop Fedora 32 (#5121)

* Update deps + allow Python 3.9

* Add in updates from Jack's branch

* Fix multiple target for cross-reference warnings

* Update a few more Python 3.8 occurrences

* Bump further

* Don't install tox in CodeQL environment

* Bump Python version in docs to 3.9.7

* more bumps

* Add missing pin

* Stop using the deprecated distro.linux_distribution()

* Suppress deprecation warning

* Fix OpenSUSE Leap instructions

* Drop Fedora 32

* Add Python 3.10-dev to CI

* meh

Co-authored-by: jack1142 <6032823+jack1142@users.noreply.github.com>

redbot/core/bot.py

@@ -1230,7 +1230,7 @@ class RedBase(
             The channel to check embed settings for.
         user : `discord.abc.User`
             The user to check embed settings for.
-        command : `commands.Command`, optional
+        command : `redbot.core.commands.Command`, optional
             The command ran.
 
         Returns

redbot/core/core_commands.py

@@ -3599,8 +3599,7 @@ class Core(commands.commands._RuleDropper, commands.Cog, CoreLogic):
             os_info = platform.mac_ver()
             osver = f"Mac OSX {os_info[0]} {os_info[2]}"
         elif IS_LINUX:
-            os_info = distro.linux_distribution()
-            osver = f"{os_info[0]} {os_info[1]}".strip()
+            osver = f"{distro.name()} {distro.version()}".strip()
         else:
             osver = "Could not parse OS, report this on Github."
         user_who_ran = getpass.getuser()