Adapt map_version test data to folder_name column (#18)

faf-db V144 makes map_version.folder_name the source-of-truth column and turns
filename into a generated column (CONCAT('maps/', folder_name, '.zip')). The
test fixture can no longer insert filename, so it now provides folder_name; the
generated filename selected by get_game_stat_row is unchanged, so the existing
Rust expectations still hold. Bump the migrations image v136 -> v144.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: Brutus5000

compose.yaml

@@ -14,7 +14,7 @@ services:
       - "3306:3306"
 
   faf-db-migrations:
-    image: faforever/faf-db-migrations:v136
+    image: faforever/faf-db-migrations:v144
     command: migrate
     environment:
       FLYWAY_URL: jdbc:mysql://faf-db/faf?useSSL=false

test/db_unit_test_data.sql

@@ -22,13 +22,13 @@ values (11, 'SCMP_001',   'FFA',            'skirmish',  1, 1),
        (14, 'SCMP_004',   'FFA',            'skirmish',  4, 1);
 
 insert into map_version
-       (id, description, max_players, width, height, version, filename,                  hidden, map_id)
-values (21, 'SCMP 001',  8,           1024,  1024,   1,       'maps/scmp_001.zip',       0,      11),
-       (22, 'SCMP 002',  8,           1024,  1024,   1,       'maps/scmp_002.zip',       0,      12),
-       (23, NULL,        8,           1024,  1024,   1,       'maps/scmp_000.zip',       0,      14),
-       (24, 'SCMP 003',  8,           1024,  1024,   1,       'maps/scmp_003.zip',       0,      13),
-       (25, 'SCMP 003',  8,           512,   512,    2,       'maps/scmp_003.v0002.zip', 0,      13),
-       (26, 'SCMP 003',  8,           512,   512,    3,       'maps/scmp_003.v0003.zip', 0,      13);
+       (id, description, max_players, width, height, version, folder_name,      hidden, map_id)
+values (21, 'SCMP 001',  8,           1024,  1024,   1,       'scmp_001',       0,      11),
+       (22, 'SCMP 002',  8,           1024,  1024,   1,       'scmp_002',       0,      12),
+       (23, NULL,        8,           1024,  1024,   1,       'scmp_000',       0,      14),
+       (24, 'SCMP 003',  8,           1024,  1024,   1,       'scmp_003',       0,      13),
+       (25, 'SCMP 003',  8,           512,   512,    2,       'scmp_003.v0002', 0,      13),
+       (26, 'SCMP 003',  8,           512,   512,    3,       'scmp_003.v0003', 0,      13);
 
 insert into game_featuredMods
        (id,   gamemod,       name,           description,  publish, git_url,       git_branch, file_extension, allow_override)