Major UT Overhaul (#16544)

* Removes old UT definition files (drone/travis)
* Adds concurrency definitions to the workflows
* Changes our workflows to be more in line with what /tg does
* Adds a workflow to build/commit TGUI
* Adds a workflow to build/commit changelogs

Add python version to dependencies.sh
Fix dme errors
Removes a bunch of not included files
Cache Opendream and add directory to check_grep.py

Co-authored-by: Werner <Arrow768@users.noreply.github.com>

code/modules/random_map/automata/automata.dm

@@ -1,7 +1,5 @@
-#define CELL_ALIVE(VAL) (VAL == cell_live_value)
 #define KILL_CELL(CELL, NEXT_MAP) NEXT_MAP[CELL] = cell_dead_value;
 #define REVIVE_CELL(CELL, NEXT_MAP) NEXT_MAP[CELL] = cell_live_value;
-
 /datum/random_map/automata
 	descriptor = "generic caves"
 	initial_wall_cell = 55

code/modules/random_map/drop/droppod.dm

@@ -223,3 +223,10 @@
 		return
 
 	new /datum/random_map/droppod(null, usr.x-1, usr.y-1, usr.z, supplied_drops = spawned_mobs, automated = automatic_pod)
+
+
+#undef SD_FLOOR_TILE
+#undef SD_WALL_TILE
+#undef SD_DOOR_TILE
+#undef SD_EMPTY_TILE
+#undef SD_SUPPLY_TILE