Automatic merge from submit-queue (batch tested with PRs 47066, 48892, 48933, 48854, 48894)
Fix windows build by altering go-ansiterm version
**What this PR does / why we need it**:
An attempt to fix windows build break in #48887, moves `github.com/Azure/go-ansiterm` to 70b2c90b26.
We can upgrade to new version when we pick docker 1.12
See also:
fab67ab677 (diff-c36e523b64f1ca41293e912113063a92L9)
**Which issue this PR fixes**
Fixes#48887
**Special notes for your reviewer**:
**Release note**: