Use KDE_INVENT where appropriate

KDE ports that use unreleased versions / versions straight from git.

PORTVERSION or DISTVERSION increased:

• audio/amarok has a newer tag so the commit hash jumps.
• devel/heaptrack has a newer tag so the commit hash jumps.
• graphics/kooka advances to a newer commit, nothing spectacular.
• graphics/peruse advances a great deal to its current state, which is slightly-before-a-real-release. This one will be dropping KDE_INVENT and going to normally-released soon, says upstream.
• net/smb4k has a newer tag so the commit hash jumps.

PORTVERSION unchanged, but I didn't bump PORTREVISION either
because it's the same software:

• editors/kile gets the hash for the tag it was previously using. (because USE_GITLAB does not understand tags and needs a full hash). There is lots of newer commits but nothing that looks like a complete releaseable state.
• net-im/ruqola gets the hash for the tag it was previously using.

Note that none of the updates that might have been possible were
reported by portscout; that's part of the hazard of using a semi-
official-at-best mirror. I hope it does catch updates from KDE Invent,
although these bits of software have flaky update schedules anyway.

Reviewed by: tcberner