*: s/whitelist_externals/allowlist_externals/

as allowlist_externals was introduced in
tox v4.0. see
5e33fda1a4 , but
this option was backported to 3.18 as an alias of whitelist_externals, so we don't need
to specify the minversion to 4.0 in this change.

as we started using tox 4.0 and up (v4.0.2 in specific). tox complains
and fails like:

alerts-lint: failed with promtool is not allowed, use allowlist_externals to allow it
  alerts-lint: FAIL code 1 (9.25 seconds)

see https://tox.wiki/en/latest/faq.html#tox-4-removed-tox-ini-keys
and https://tox.wiki/en/latest/config.html#allowlist_externals

it'd be nice to use a more inclusive language also. so, in this change,
s/whitelist_externals/allowlist_externals/ in all tox.ini in this
project.

Signed-off-by: Kefu Chai <tchaikov@gmail.com>

monitoring/ceph-mixin/tox.ini

@@ -8,7 +8,7 @@ envlist =
 skipsdist = true
 
 [testenv:jsonnet-bundler-{install,update}]
-whitelist_externals =
+allowlist_externals =
     jb
 description =
     install: Install the jsonnet dependencies
@@ -19,7 +19,7 @@ commands =
 
 [testenv:jsonnet-{check,fix,lint}]
 basepython = python3
-whitelist_externals =
+allowlist_externals =
     find
     jb
     jsonnet
@@ -56,7 +56,7 @@ deps =
     -rrequirements-lint.txt
 depends = grafonnet-check
 setenv =
-whitelist_externals =
+allowlist_externals =
   promtool
 commands =
     behave tests_dashboards/features 
@@ -66,7 +66,7 @@ deps =
     -rrequirements-alerts.txt
     pytest
 depends = grafonnet-check
-whitelist_externals =
+allowlist_externals =
   promtool
 commands =
     fix: jsonnet -J vendor -S alerts.jsonnet -o prometheus_alerts.yml

src/ceph-volume/ceph_volume/tests/functional/batch/tox.ini

@@ -4,7 +4,7 @@ skipsdist = True
 
 [testenv]
 deps = mock
-whitelist_externals =
+allowlist_externals =
     vagrant
     bash
     git

src/ceph-volume/ceph_volume/tests/functional/lvm/tox.ini

@@ -4,7 +4,7 @@ skipsdist = True
 
 [testenv]
 deps = mock
-whitelist_externals =
+allowlist_externals =
     vagrant
     bash
     git

src/ceph-volume/ceph_volume/tests/functional/simple/tox.ini

@@ -4,7 +4,7 @@ skipsdist = True
 
 [testenv]
 deps = mock
-whitelist_externals =
+allowlist_externals =
     vagrant
     bash
     git

src/ceph-volume/shell_tox.ini

@@ -4,7 +4,7 @@ skip_missing_interpreters = true
 
 [testenv]
 passenv=*
-whitelist_externals=
+allowlist_externals=
   bash
   grep
   mktemp