copilot-c99 3.19

Only display out-of-date packages.

7 Reverse deps	Accepted versions
arduino-copilot	(==3.18.*)
copilot	==3.19.*
copilot-cbmc	>=2.2.1
copilot-frp-sketch	(==3.7.*)
copilot-verifier	==3.19.*
sketch-frp-copilot	(==3.18.*)
zephyr-copilot	(==3.18.*)