Bump urllib3 from 2.0.4 to 2.0.6 in /utils/git (#5839)

Bumps urllib3 from 2.0.4 to 2.0.6.

Release notes Sourced from urllib3's releases
2.0.6

Added the Cookie header to the list of headers to strip
from requests when redirecting to a different host. As before, different
headers can be set via Retry.remove_headers_on_redirect.
(GHSA-v845-jxx5-vc9f)

2.0.5

Allowed pyOpenSSL third-party module without any deprecation
warning. https://redirect.github.com/urllib3/urllib3/issues/3126

Fixed default blocksize of HTTPConnection
classes to match high-level classes. Previously was 8KiB, now 16KiB. 
https://redirect.github.com/urllib3/urllib3/issues/3066

Changelog Sourced from urllib3's changelog

2.0.6 (2023-10-02)

Added the Cookie header to the list of headers to strip
from requests when redirecting to a different host. As before, different
headers can be set via
Retry.remove_headers_on_redirect

2.0.5 (2023-09-20)

Allowed pyOpenSSL third-party module without any deprecation
warning. urllib3/urllib3#3126

Fixed default blocksize of HTTPConnection
classes to match high-level classes. Previously was 8KiB, now 16KiB.
urllib3/urllib3#3066

Commits
urllib3/urllib3@262e3e3
Release 2.0.6

urllib3/urllib3@644124e
Merge pull request from GHSA-v845-jxx5-vc9f</li>

urllib3/urllib3@740380c
Bump cryptography from 41.0.3 to 41.0.4 (https://redirect.github.com/urllib3/urllib3/issues/3131)

urllib3/urllib3@d9f85a7
Release 2.0.5

urllib3/urllib3@d41f412
Undeprecate pyOpenSSL module (https://redirect.github.com/urllib3/urllib3/issues/3127)

urllib3/urllib3@b6c04cb
Fix a link to "absolute URI" definition (https://redirect.github.com/urllib3/urllib3/issues/3128

urllib3/urllib3@af7c78f
refactor: change double conditional to one (https://redirect.github.com/urllib3/urllib3/issues/3118

urllib3/urllib3@34c13c8
Refer to current internet standards in docs on proxies (https://redirect.github.com/urllib3/urllib3/issues/3124

urllib3/urllib3@a3e94f2
Fix a name of an attribute in docs (https://redirect.github.com/urllib3/urllib3/issues/3125

urllib3/urllib3@da69d4f
Fix docs build (https://redirect.github.com/urllib3/urllib3/issues/3123

Additional commits viewable in urllib3/urllib3@2.0.4...2.0.6


Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

utils/git/requirements_formatting.txt

@@ -46,7 +46,7 @@ requests==2.31.0
     # via pygithub
 toml==0.10.2
     # via darker
-urllib3==2.0.4
+urllib3==2.0.6
     # via requests
 wrapt==1.15.0
     # via deprecated