fix: SnakeYAML usage

cleanup: Remove broken ModLoaderMP support

refactor+feat: Cleanup patches, invalid head rotation patch

Move Uberbukkit config entries from PoseidonConfig to UberbukkitConfig

Bumps [org.yaml:snakeyaml](https://bitbucket.org/snakeyaml/snakeyaml) from 1.7 to 2.0.
- [Commits](https://bitbucket.org/snakeyaml/snakeyaml/branches/compare/snakeyaml-2.0..v1.7)

---
updated-dependencies:
- dependency-name: org.yaml:snakeyaml
dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [com.google.guava:guava](https://github.com/google/guava) from 30.1.1-jre to 32.0.0-jre.
- [Release notes](https://github.com/google/guava/releases)
- [Commits](https://github.com/google/guava/commits)

---
updated-dependencies:
- dependency-name: com.google.guava:guava
dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Add an automatic update checker that will query the GitHub releases to see if a newer version is available.

By default operators and users with the permission poseidon.update will be notified of updates when joining the server.

Implement Boat Crash Exploit Mitigation from UberBukkit

* Add version properties to jar

* Improve build and test

* Remove invalid step 9

* Additional version info

* Remove unnecessary GitHub action fields

* fix typo

* Improve Poseidon version command

* Dynamically get application name for forks

* Update Poseidon name in pom

* Fix version.properties not including all fields

Fix various piston exploits

Also update Readme page

Resolve issues with Event IgnoreCancelled annotation being ignored

This change is being reverted as it can cause weird duplication issues with the inventory slots when players rejoin the game.

Add chest open event

# Conflicts:
# src/main/java/net/minecraft/server/Block.java
# src/main/java/net/minecraft/server/BlockBed.java
# src/main/java/net/minecraft/server/BlockCrops.java
# src/main/java/net/minecraft/server/BlockPistonMoving.java
# src/main/java/net/minecraft/server/BlockSponge.java
# src/main/java/net/minecraft/server/BlockStairs.java
# src/main/java/org/bukkit/block/Block.java
# src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java

Fix for issue #98 (Player#getInventory#getArmorContents is always AIR)

Fix for issue #87 (Creepers not dropping music discs when killed by skeletons)