add request_body_* > request_body migration + unit test

Author: Oleksandr Bazarnov

airbyte_cdk/manifest_migrations/migrations/http_requester_request_body_json_data_to_request_body_v6_45_2__2.py

@@ -0,0 +1,28 @@
+from airbyte_cdk.manifest_migrations.manifest_migration import (
+    TYPE_TAG,
+    ManifestMigration,
+    ManifestType,
+)
+
+
+class V_6_45_2_HttpRequesterRequestBodyJsonDataToRequestBody(ManifestMigration):
+    """
+    This migration is responsible for migrating the `url_base` key to `url` in the HttpRequester component.
+    The `url_base` key is expected to be a base URL, and the `url` key is expected to be a full URL.
+    The migration will copy the value of `url_base` to `url`.
+    """
+
+    component_type = "HttpRequester"
+    original_keys = ["request_body_json", "request_body_data"]
+    replacement_key = "request_body"
+
+    def should_migrate(self, manifest: ManifestType) -> bool:
+        return manifest[TYPE_TAG] == self.component_type and any(
+            key in list(manifest.keys()) for key in self.original_keys
+        )
+
+    def migrate(self, manifest: ManifestType) -> None:
+        for key in self.original_keys:
+            if key in manifest:
+                manifest[self.replacement_key] = manifest[key]
+                manifest.pop(key, None)