chore: switch master branch to use v1.19.0

[andyzhangx]

What type of PR is this?
/kind documentation

What this PR does / why we need it:
chore: switch master branch to use v1.19.0

Which issue(s) this PR fixes:

Fixes #

Requirements:

• uses conventional commit messages
• includes documentation
• adds unit tests
• tested upgrade from previous version

Special notes for your reviewer:

git checkout -b switch-master-1.19.0
sed -i 's/1.18.0/1.19.0/g' Makefile
cd charts/latest/
sed -i 's/1.18.0/1.19.0/g' azuredisk-csi-driver/Chart.yaml
helm package azuredisk-csi-driver
git rm azuredisk-csi-driver-v1.18.0.tgz
git add azuredisk-csi-driver-v1.19.0.tgz
cd ../../
helm repo index charts --url=https://raw.githubusercontent.com/kubernetes-sigs/azuredisk-csi-driver/master/charts
$git_commit
git push origin switch-master-1.19.0

Release note:

none

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: andyzhangx

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[andyzhangx]

/retest

[k8s-ci-robot]

@andyzhangx: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-azuredisk-csi-driver-external-e2e-single-az	91694ad	link	true	/test pull-azuredisk-csi-driver-external-e2e-single-az

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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