feat: add 1.4.1 migration contracts for Cronos Testnet (#1523)

## Add new chain

Please fill the following form:

Provide the Chain ID (Only 1 chain id per PR).
- Chain_ID: 338

Relevant information:
```
deploying "SafeToL2Setup" (tx: 0x847c20915a2ccd0a6643a0eb2bbd8cf08c8146698d9547b1106f10ff4609296c)...: deployed at 0xBD89A1CE4DDe368FFAB0eC35506eEcE0b1fFdc54 with 230863 gas
deploying "SafeToL2Migration" (tx: 0x50ab73e92a70a34d6b9a2be13598e95fa0f40c8470cc48dfd07767ccd7bf9878)...: deployed at 0xfF83F6335d8930cBad1c0D439A841f01888D9f69 with 1283078 gas
deploying "SafeMigration" (tx: 0xbe8664d673ef4ac644306e939c6861121f0b32bc9dd3df1b79a4e7cfeb007865)...: deployed at 0x526643F69b81B008F46d95CD5ced5eC0edFFDaC6 with 512858 gas
```

Author: ElvisKrop

src/assets/v1.4.1/safe_migration.json

@@ -57,6 +57,7 @@
     "314": "canonical",
     "324": ["zksync", "canonical"],
     "336": "canonical",
+    "338": "canonical",
     "360": "canonical",
     "466": "canonical",
     "478": "canonical",

src/assets/v1.4.1/safe_to_l2_migration.json

@@ -57,6 +57,7 @@
     "314": "canonical",
     "324": ["zksync", "canonical"],
     "336": "canonical",
+    "338": "canonical",
     "360": "canonical",
     "466": "canonical",
     "478": "canonical",

src/assets/v1.4.1/safe_to_l2_setup.json

@@ -57,6 +57,7 @@
     "314": "canonical",
     "324": ["zksync", "canonical"],
     "336": "canonical",
+    "338": "canonical",
     "360": "canonical",
     "466": "canonical",
     "478": "canonical",