refactor: remove default raycluster image

Author: dimakis

src/codeflare_sdk/cluster/config.py

@@ -48,7 +48,7 @@ class ClusterConfiguration:
     instascale: bool = False
     mcad: bool = True
     envs: dict = field(default_factory=dict)
-    image: str = "quay.io/project-codeflare/ray:latest-py39-cu118"
+    image: str = ""
     local_interactive: bool = False
     image_pull_secrets: list = field(default_factory=list)
     dispatch_priority: str = None

tests/unit_test_support.py

@@ -47,6 +47,7 @@ def createClusterConfig():
         machine_types=["cpu.small", "gpu.large"],
         image_pull_secrets=["unit-test-pull-secret"],
         ingress_domain="apps.cluster.awsroute.org",
+        image="quay.io/project-codeflare/ray:latest-py39-cu118"
     )
     return config