Updated Upstream (Bukkit/CraftBukkit/Spigot)

Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
716b4fce Revert SnakeYAML upgrade
ca6f8942 Update to Minecraft 1.18-rc3
57e7e952 #683: Add Player#showDemoScreen

CraftBukkit Changes:
c98abfb0 Update to Minecraft 1.18-rc3
9b258501 #960: Add Player#showDemoScreen
d9542247 Produce remapped jars after bootstrap jar
99f3ddde SPIGOT-6808: Fix RegionAccessor#getBiome

Spigot Changes:
b7a4222e Update to Minecraft 1.18-rc3

patches/api/0001-Convert-project-to-Gradle.patch

@@ -98,7 +98,7 @@ index 0000000000000000000000000000000000000000..3ccff060bcb816520a27ec2f34adc977
 +}
 diff --git a/pom.xml b/pom.xml
 deleted file mode 100644
-index c8947e43bcd83c51d79ebe5a110445bf1e5388b2..0000000000000000000000000000000000000000
+index 8a8fa2c76ecbd78b5bc57fe0be9abca5dc20ad86..0000000000000000000000000000000000000000
 --- a/pom.xml
 +++ /dev/null
 @@ -1,262 +0,0 @@
@@ -109,7 +109,7 @@ index c8947e43bcd83c51d79ebe5a110445bf1e5388b2..00000000000000000000000000000000
 -
 -    <groupId>org.spigotmc</groupId>
 -    <artifactId>spigot-api</artifactId>
--    <version>1.18-pre8-R0.1-SNAPSHOT</version>
+-    <version>1.18-rc3-R0.1-SNAPSHOT</version>
 -    <packaging>jar</packaging>
 -
 -    <name>Spigot-API</name>