Bump urllib3 from 1.26.5 to 1.26.17 in /installer

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.26.5 to 1.26.17.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@1.26.5...1.26.17)

---
updated-dependencies:
- dependency-name: urllib3
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

installer/requirements.txt

@@ -1,4 +1,4 @@
-urllib3==1.26.5
+urllib3==1.26.17
 click~=7.0
 progressbar33==2.4
 psutil==5.9.0

installer/setup.py

@@ -16,7 +16,7 @@
         "requests_unixsocket==0.1.5",
         "simplejson==3.8.2",
         "toml==0.10.0",
-        "urllib3==1.26.5",
+        "urllib3==1.26.17",
     ],
     platforms="any",
     entry_points={