Release v0.4.0

What's Changed

• Booster HITL test scripting by @ryan-summers in #209
• Feature/minireq by @ryan-summers in #210
• Upgrading to RTIC 1.0 by @ryan-summers in #211
• Feature/smoltcp support by @ryan-summers in #213
• Adding DHCP support by @ryan-summers in #215
• Saving default fan speed to EEPROM by @ryan-summers in #216
• Migrating documentation to Github Pages by @ryan-summers in #217
• Adding metadata topic publish on alive tree by @ryan-summers in #219
• Fixing non-existent dependency by @ryan-summers in #222

Full Changelog: v0.3.0...v0.4.0