Update PSScriptAnalyzer rule documentation to `docs.microsoft.com`

[andyleejordan]

Prerequisites

• I have written a descriptive issue title.
• I have searched all issues to ensure it has not already been reported.

Summary

The PSScriptAnalyzer documentation will soon be published at docs.microsoft.com, so we can update this URI:

vscode-powershell/src/features/CodeActions.ts

Line 37 in 8f40aa1

const pssaDocBaseURL = "https://github.com/PowerShell/PSScriptAnalyzer/blob/master/docs/Rules";

to point there when it happens.

Proposed Design

No response

[andyleejordan]

This will unfortunately be a little more involved than just using a redirect link, looking at this code:

vscode-powershell/src/features/CodeActions.ts

Lines 36 to 50 in 8f40aa1

	public showRuleDocumentation(ruleId: string) {
	const pssaDocBaseURL = "https://github.com/PowerShell/PSScriptAnalyzer/blob/master/docs/Rules";
	if (!ruleId) {
	this.log.writeWarning("Cannot show documentation for code action, no ruleName was supplied.");
	return;
	}
	if (ruleId.startsWith("PS")) {
	ruleId = ruleId.substr(2);
	}
	vscode.commands.executeCommand("vscode.open", vscode.Uri.parse(pssaDocBaseURL + `/${ruleId}.md`));
	}
	}

as we won't be pointing to .md links any more.

[sdwheeler]

#3608 should fix this. When the docs are live on docs.microsoft.com we can change the base URL to point to the docs path and just append the ruleId without the .md extension.