[Snyk] Security upgrade azure-pipelines-task-lib from 4.3.1 to 4.7.0

[tylerezimmerman]

This PR was automatically created by Snyk using the credentials of a real user.

Snyk has created this PR to fix one or more vulnerable packages in the `npm` dependencies of this project.

#### Changes included in this PR - Changes to the following files to upgrade the vulnerable dependencies to a fixed version: - DSSV1/package.json - DSSV1/package-lock.json #### Vulnerabilities that will be fixed ##### With an upgrade: Severity | Priority Score (*) | Issue | Breaking Change | Exploit Maturity :-------------------------:|-------------------------|:-------------------------|:-------------------------|:-------------------------  | **124/1000**
**Why?** Confidentiality impact: None, Integrity impact: None, Availability impact: High, Scope: Unchanged, Exploit Maturity: No data, User Interaction (UI): None, Privileges Required (PR): None, Attack Complexity: Low, Attack Vector: Network, EPSS: 0.00119, Social Trends: No, Days since published: 299, Reachable: No, Transitive dependency: Yes, Is Malicious: No, Business Criticality: High, Provider Urgency: High, Package Popularity Score: 97, Impact: 5.99, Likelihood: 2.06, Score Version: V5 | Prototype Pollution
[SNYK-JS-MOCKERY-3043117](https://snyk.io/vuln/SNYK-JS-MOCKERY-3043117) | No | No Known Exploit (*) Note that the real score may have changed since the PR was raised.

Commit messages

Package name: azure-pipelines-task-lib

The new version differs by 16 commits.

• 01d398f [release/5.x merging] - merge 5.x to master (#989)
• 183b554 Regen package-lock.json (#991)
• b31a83b Fix PsRunner (#983)
• f952803 Added publish script for PowerShell SDK (#975)
• 5fb0f50 [PowerShell SDK] Add Invoke-VstsProcess (#978)
• 0b4a3c7 Update tasks schema - add `removalDate` (#976)
• 45b9782 Introduce tl.getNodeMajorVersion (#979)
• cea7412 Removed unsupported lib, added async methods (#932)
• bb9d85d Increased version and updated release notes (#966)
• bff4def refactor: replace `Q` with native promises (#905)
• 44e727d refactor: remove Q library from Powershell SDK in favor of native promises (#944)
• ff62c9b #940 (#941)
• ab676de Add `getBoolFeatureFlag` (#936)
• 4086d6b Update ReleaseNotes for PowerShell's VstsTaskSdk (#934)
• eac6dd4 update ubuntu image (#925)
• f7e1795 Remove note about v4 task lib status (#919)

See the full diff

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