fix: Update TypeScript Version in Yeoman Templates to 4.0.7

[anishprasad01]

Fixes #4251

Description

Updates the TypeScript version of the generators for empty, echo, and core bot templates to the earliest supported version, 4.0.7, to resolve the bug.

Specific Changes

• Update TS version package.json.ts and package-with-tests.json.ts in core bot template from 3.9.2 to 4.0.7.
• Update TS version package.json.ts in echo bot template from 3.9.2 to 4.0.7.
• Update TS version package.json.ts in empty bot template from 3.9.2 to 4.0.7.

Testing

npm install fails on version 3.9.2. Updating the version and rerunning the install results in a success and the bot then runs.

[coveralls]

Pull Request Test Coverage Report for Build 2436508762

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 84.481%

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Totals
Change from base Build 2415522468:	0.0%
Covered Lines:	19903
Relevant Lines:	22311

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💛 - Coveralls