Merge ~troyanov/maas:fix-snap-requirements into maas:master

[Anton Troyanov]

fix: github.com/Supervisor/supervisor master->main

It seems that `master` branch is no longer there, so when trying to run
`make snap-tree` the following error occurs:

:: Collecting supervisor
:: Cloning https://github.com/Supervisor/supervisor (to revision master) to /tmp/pip-install-jva08zy_/supervisor_7d49fb8c4b9f40d7b8d47d430d9d7a22
:: Running command git clone --filter=blob:none --quiet https://github.com/Supervisor/supervisor /tmp/pip-install-jva08zy_/supervisor_7d49fb8c4b9f40d7b8d47d430d9d7a22
:: WARNING: Did not find branch or tag 'master', assuming revision or ref.
:: Running command git checkout -q master
:: error: pathspec 'master' did not match any file(s) known to git
:: error: subprocess-exited-with-error

[Christian Grabowski (cgrabowski)]

+1

review: Approve

[MAAS Lander (maas-lander)]

UNIT TESTS
-b fix-snap-requirements lp:~troyanov/maas/+git/maas into -b master lp:~maas-committers/maas

STATUS: FAILED
LOG: http://maas-ci.internal:8080/job/maas-tester/1364/consoleText
COMMIT: e9eb051f430f0ca686d24416a4ddc5ff76c793d2

review: Needs Fixing

[Anton Troyanov (troyanov)]

jenkins: !test

[MAAS Lander (maas-lander)]

UNIT TESTS
-b fix-snap-requirements lp:~troyanov/maas/+git/maas into -b master lp:~maas-committers/maas

STATUS: FAILED
LOG: http://maas-ci.internal:8080/job/maas-tester/1369/consoleText
COMMIT: e9eb051f430f0ca686d24416a4ddc5ff76c793d2

review: Needs Fixing

[MAAS Lander (maas-lander)]

UNIT TESTS
-b fix-snap-requirements lp:~troyanov/maas/+git/maas into -b master lp:~maas-committers/maas

STATUS: SUCCESS
COMMIT: 95c35f03d32202fe77469df0b533193083e61e3d

review: Approve

diff --git a/snap/local/requirements.txt b/snap/local/requirements.txt
index 60d3794..3532632 100644
--- a/snap/local/requirements.txt
+++ b/snap/local/requirements.txt
@@ -1,2 +1,2 @@
 pyvmomi==6.0.0.2016.6
-git+https://github.com/Supervisor/supervisor@master#egg=supervisor
+git+https://github.com/Supervisor/supervisor@main#egg=supervisor