doc: cut v4.3.0 release

[andyzhangx]

What type of PR is this?
/kind documentation

What this PR does / why we need it:
doc: cut v4.3.0 release

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

git checkout -b cut-v4.3.0
sed -i 's/v4.2.0/v4.3.0/g' Makefile
vi README.md
cd charts/
sed -i 's/v4.2.0/v4.3.0/g' README.md
sed -i 's/: canary/: v4.3.0/g' latest/csi-driver-nfs/values.yaml
sed -i 's/gcr.io\/k8s-staging-sig-storage\/nfsplugin/registry.k8s.io\/sig-storage\/nfsplugin/g' latest/csi-driver-nfs/values.yaml
sed -i 's/: latest/: v4.3.0/g' latest/csi-driver-nfs/Chart.yaml
sed -i 's/: v0.0.0/: v4.3.0/g' latest/csi-driver-nfs/Chart.yaml
cd latest
helm package csi-driver-nfs
git rm csi-driver-nfs-v0.0.0.tgz
git add csi-driver-nfs-v4.3.0.tgz
cd ..
cp latest/ v4.3.0 -r
cd v4.3.0/
helm package csi-driver-nfs
cd ../../
helm repo index charts --url=https://raw.githubusercontent.com/kubernetes-csi/csi-driver-nfs/master/charts
cd ./deploy/
sed -i 's/:canary/:v4.3.0/g' *.yaml
sed -i 's/gcr.io\/k8s-staging-sig-storage/registry.k8s.io\/sig-storage/g' *.yaml
mkdir v4.3.0
cp *.yaml v4.3.0/
cd ../docs/
cp install-csi-driver-master.md install-csi-driver-v4.3.0.md
grep master install-csi-driver-v4.3.0.md
sed -i 's/master/v4.3.0/g' install-csi-driver-v4.3.0.md
cd ..
vi docs/install-nfs-csi-driver.md
git add charts/ deploy/ docs/
$git_commit
# second commit to revert back to latest version
sed -i 's/registry.k8s.io\/sig-storage\/nfsplugin:v4.3.0/gcr.io\/k8s-staging-sig-storage\/nfsplugin:canary/g' deploy/*.yaml
sed -i 's/: v4.3.0/: canary/g' charts/latest/csi-driver-nfs/values.yaml
sed -i 's/registry.k8s.io\/sig-storage\/nfsplugin/gcr.io\/k8s-staging-sig-storage\/nfsplugin/g' charts/latest/csi-driver-nfs/values.yaml
sed -i 's/appVersion: v4.3.0/appVersion: latest/g' charts/latest/csi-driver-nfs/Chart.yaml
sed -i 's/version: v4.3.0/version: v0.0.0/g' charts/latest/csi-driver-nfs/Chart.yaml
cd charts/latest
helm package csi-driver-nfs
git add csi-driver-nfs-v0.0.0.tgz
git rm csi-driver-nfs-v4.3.0.tgz
cd ../..
helm repo index charts --url=https://raw.githubusercontent.com/kubernetes-csi/csi-driver-nfs/master/charts
$git_commit
git push origin cut-v4.3.0

Does this PR introduce a user-facing change?:

doc: cut v4.3.0 release

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: andyzhangx

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [andyzhangx]

Approvers can indicate their approval by writing /approve in a comment
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[andyzhangx]

/retest

[coveralls]

Pull Request Test Coverage Report for Build 5109412318

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 78.426%

---

Totals
Change from base Build 5109351494:	0.0%
Covered Lines:	847
Relevant Lines:	1080

---

💛 - Coveralls

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