Release v3.4.2

What's Changed

• Allow test API command dispatcher override. Fixes nasa/fprime#2442 by @LeStarch in #158
• Added file=sys.stderr in some prints by @SMorettini in #157
• Remove flask_uploads.py by @thomas-bc in #152
• Fix command argument types when importing from history by @thomas-bc in #159
• Strip PR template of superflous fields by @thomas-bc in #160
• Fix logging of timebase in seqgen by @thomas-bc in #162
• Add support to GDS for struct member array by @SMorettini in #161

Full Changelog: v3.4.1...v3.4.2