Updated Upstream (Paper)

Upstream has released updates that appear to apply and compile correctly

Paper Changes:
PaperMC/Paper@78feecb Deprecate BlockType#isInteractable (#11427)
PaperMC/Paper@1cb2bf4 Add velocity forwarding secret env override (#10127)
PaperMC/Paper@81d9448 Add ItemStack array serialization methods (#10387)
PaperMC/Paper@2f50b87 Fixup command precprocess cancellation (#11424)
PaperMC/Paper@540deb7 Fix Color Particle API (#10895)
PaperMC/Paper@e8297c4 Expand out datapack API (#10828)
PaperMC/Paper@4514c71 Only call EntityPortalExitEvent if entity is actually in a portal

gradle.properties

@@ -2,7 +2,7 @@ group = org.stupidcraft.linearpaper
 version = 1.21.1-R0.1-SNAPSHOT
 
 mcVersion = 1.21.1
-paperCommit = 1ed64f82704c299d0f7ae9af710579be995af8de
+paperCommit = 4514c71a7fb043140b7926c2fa2686f6d56da83d
 
 org.gradle.caching = true
 org.gradle.parallel = true