[CI] Update Azure Pipelines distros and fix shebang

- Add devel targets for Docker and Remote stages
- Split existing targets into 2.21 stages
- Fix shebang in timing.py to pass sanity test
- Remove unnecessary shebang ignores from sanity ignore files

Signed-off-by: Hideki Saito <saito@fgrep.org>

tests/sanity/ignore-2.14.txt

@@ -1,2 +1 @@
 tests/utils/shippable/check_matrix.py replace-urlopen
-tests/utils/shippable/timing.py shebang

tests/sanity/ignore-2.15.txt

@@ -1,2 +1 @@
 tests/utils/shippable/check_matrix.py replace-urlopen
-tests/utils/shippable/timing.py shebang

tests/sanity/ignore-2.16.txt

@@ -1 +0,0 @@
-tests/utils/shippable/timing.py shebang

tests/sanity/ignore-2.17.txt

@@ -1 +0,0 @@
-tests/utils/shippable/timing.py shebang

tests/sanity/ignore-2.18.txt

@@ -1 +0,0 @@
-tests/utils/shippable/timing.py shebang

tests/sanity/ignore-2.19.txt

@@ -1 +0,0 @@
-tests/utils/shippable/timing.py shebang

tests/sanity/ignore-2.20.txt

@@ -1 +0,0 @@
-tests/utils/shippable/timing.py shebang

tests/sanity/ignore-2.21.txt

@@ -1,4 +1,3 @@
-tests/utils/shippable/timing.py shebang
 plugins/action/synchronize.py pylint:ansible-bad-import-from
 plugins/callback/cgroup_perf_recap.py pylint:ansible-bad-import-from
 plugins/modules/mount.py pylint:ansible-bad-import-from

tests/sanity/ignore-2.22.txt

@@ -0,0 +1,9 @@
+plugins/action/synchronize.py pylint:ansible-bad-import-from
+plugins/callback/cgroup_perf_recap.py pylint:ansible-bad-import-from
+plugins/modules/mount.py pylint:ansible-bad-import-from
+plugins/modules/sysctl.py pylint:ansible-bad-import-from
+plugins/shell/csh.py pylint:ansible-bad-import-from
+plugins/shell/fish.py pylint:ansible-bad-import-from
+tests/unit/mock/procenv.py pylint:ansible-bad-import-from
+tests/unit/mock/yaml_helper.py pylint:ansible-bad-import-from
+tests/unit/modules/conftest.py pylint:ansible-bad-import-from