Update provision_aks.sh (#320)

[BSamodien]

• Update provision_aks.sh

Update AKS cluster version from 1.13.11 to 1.15.7

• Update install_jenkins.sh

Update jenkins for 1.15.7 kubectl

• Update Dockerfile

Update proctor container for 1.15.7 kubectl

Purpose

• ...

Does this introduce a breaking change?

[ ] Yes
[ ] No

Pull Request Type

What kind of change does this Pull Request introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe:

How to Test

• Get the code

git clone [repo-address]
cd [repo-name]
git checkout [branch-name]
npm install

• Test the code

What to Check

Verify that the following are valid

• ...

Other Information

[dtzar]

1.15.10 is latest default, but 1.16.7 is GA and I'd recommend bumping to this instead to buy more time until 1.16.x expires.

[rguthriemsft]

If this were a longer term fix I would agree with David but it's only short term.

[dtzar]

Ok @rguthriemsft why not at least do 1.15.10?