Support Non-Semver Engine Versions in VSCE Validation and Comparison

[mohankumarelec]

The Regex used for checking valid engine version, can have values like 1.96.x, which is not a valid semver.
When using these kinds of version, the semver version comparison fails.

vscode-vsce/src/validation.ts

Lines 51 to 53 in f1fc6d2

	if (!/^\*$|^(\^|>=)?((\d+)|x)\.((\d+)|x)\.((\d+)|x)(\-.*)?$/.test(version)) {
	throw new Error(`Invalid vscode engine compatibility version '${version}'`);
	}

vscode-vsce/src/package.ts

Line 506 in f1fc6d2

if (engineVersion !== 'latest' && !semver.satisfies(engineVersion, '>=1.61', { includePrerelease: true })) {