build(deps): bump urllib3 from 1.26.8 to 1.26.18 in /buildchain

buildchain/requirements.txt

@@ -4,17 +4,29 @@
 #
 # tox -e pip-compile
 #
-certifi==2021.10.8 # via requests
-charset-normalizer==2.0.10 # via requests
-cloudpickle==2.0.0 # via doit
-docker==4.1.0 # via -r buildchain/requirements.in
-doit==0.34.0 # via -r buildchain/requirements.in
-idna==3.3 # via requests
-pyyaml==5.3.1 # via -r buildchain/requirements.in
-requests==2.27.1 # via docker
-six==1.16.0 # via docker
-urllib3==1.26.8 # via requests
-websocket-client==1.2.3 # via docker
-# Note: these come from 'buildchain/platform-requirements.txt'
-macfsevents==0.8.1; sys_platform=="darwin" # via doit
-pyinotify==0.9.6; sys_platform=="linux" # via doit
+certifi==2021.10.8
+ # via requests
+charset-normalizer==2.0.10
+ # via requests
+cloudpickle==2.0.0
+ # via doit
+docker==4.1.0
+ # via -r requirements.in
+doit==0.34.0
+ # via -r requirements.in
+idna==3.3
+ # via requests
+pyinotify==0.9.6 ; sys_platform == "linux"
+ # via
+ # -c platform-requirements.txt
+ # doit
+pyyaml==5.3.1
+ # via -r requirements.in
+requests==2.27.1
+ # via docker
+six==1.16.0
+ # via docker
+urllib3==1.26.18
+ # via requests
+websocket-client==1.2.3
+ # via docker