update argoexec rock to v3.3.10 and add tests

[NohaIhab]

• Updates the argoexec rock to v3.3.10 according to the Dockerfile
• Adds tox.ini in the argoexec rock directory
• Adds sanity tests in the argoexec rock directory

Manual testing

• Deploy this bundle.yaml that is a subset of the ckf bundle on top of juju and uk8s:

  bundle: kubernetes
  name: kubeflow
  docs: https://discourse.charmhub.io/t/3749
  applications:
  admission-webhook:
  charm: admission-webhook
  channel: 1.8/stable
  trust: true
  scale: 1
  _github_repo_name: admission-webhook-operator
  _github_repo_branch: track/1.8
  argo-controller:
  charm: argo-controller
  channel: 3.3.10/stable
  trust: true
  scale: 1
  _github_repo_name: argo-operators
  _github_repo_branch: track/3.3.10
  dex-auth:
  charm: dex-auth
  channel: 2.36/stable
  scale: 1
  trust: true
  _github_repo_name: dex-auth-operator
  _github_repo_branch: track/2.36
  envoy:
  charm: envoy
  channel: 2.0/stable
  scale: 1
  trust: true
  _github_repo_name: envoy-operator
  _github_repo_branch: track/2.0
  istio-ingressgateway:
  charm: istio-gateway
  channel: 1.17/stable
  scale: 1
  trust: true
  _github_repo_name: istio-operators
  _github_repo_branch: track/1.17
  options:
    kind: ingress
  istio-pilot:
  charm: istio-pilot
  channel: 1.17/stable
  scale: 1
  trust: true
  _github_repo_name: istio-operators
  _github_repo_branch: track/1.17
  options:
    default-gateway: kubeflow-gateway
  kfp-api:
  charm: kfp-api
  channel: 2.0/stable
  scale: 1
  trust: true
  _github_repo_name: kfp-operators
  _github_repo_branch: track/2.0
  kfp-db:
  charm: mysql-k8s
  channel: 8.0/stable
  scale: 1
  trust: true
  constraints: mem=2G
  kfp-metadata-writer:
  charm: kfp-metadata-writer
  channel: 2.0/stable
  scale: 1
  trust: true
  _github_repo_name: kfp-operators
  _github_repo_branch: track/2.0
  kfp-persistence:
  charm: kfp-persistence
  channel: 2.0/stable
  scale: 1
  trust: true
  _github_repo_name: kfp-operators
  _github_repo_branch: track/2.0
  kfp-profile-controller:
  charm: kfp-profile-controller
  channel: 2.0/stable
  scale: 1
  trust: true
  _github_repo_name: kfp-operators
  _github_repo_branch: track/2.0
  kfp-schedwf:
  charm: kfp-schedwf
  channel: 2.0/stable
  scale: 1
  trust: true
  _github_repo_name: kfp-operators
  _github_repo_branch: track/2.0
  kfp-ui:
  charm: kfp-ui
  channel: 2.0/stable
  scale: 1
  trust: true
  _github_repo_name: kfp-operators
  _github_repo_branch: track/2.0
  kfp-viewer:
  charm: kfp-viewer
  channel: 2.0/stable
  scale: 1
  trust: true
  _github_repo_name: kfp-operators
  _github_repo_branch: track/2.0
  kfp-viz:
  charm: kfp-viz
  channel: 2.0/stable
  scale: 1
  trust: true
  _github_repo_name: kfp-operators
  _github_repo_branch: track/2.0
  kubeflow-dashboard:
  charm: kubeflow-dashboard
  channel: 1.8/stable
  scale: 1
  trust: true
  _github_repo_name: kubeflow-dashboard-operator
  _github_repo_branch: track/1.8
  kubeflow-profiles:
  charm: kubeflow-profiles
  channel: 1.8/stable
  scale: 1
  trust: true
  _github_repo_name: kubeflow-profiles-operator
  _github_repo_branch: track/1.8
  kubeflow-roles:
  charm: kubeflow-roles
  channel: 1.8/stable
  scale: 1
  trust: true
  _github_repo_name: kubeflow-roles-operator
  _github_repo_branch: track/1.8
  metacontroller-operator:
  charm: metacontroller-operator
  channel: 3.0/stable
  scale: 1
  trust: true
  _github_repo_name: metacontroller-operator
  _github_repo_branch: track/3.0
  mlmd:
  charm: mlmd
  channel: 1.14/stable
  scale: 1
  _github_repo_name: mlmd-operator
  _github_repo_branch: track/1.14
  minio:
  charm: minio
  channel: ckf-1.8/stable
  scale: 1
  _github_repo_name: minio-operator
  _github_repo_branch: track/ckf-1.8
  oidc-gatekeeper:
  charm: oidc-gatekeeper
  channel: ckf-1.8/stable
  scale: 1
  trust: true
  _github_repo_name: oidc-gatekeeper-operator
  _github_repo_branch: track/ckf-1.8
  relations:
  - [argo-controller, minio]
  - [dex-auth:oidc-client, oidc-gatekeeper:oidc-client]
  - [istio-pilot:ingress, dex-auth:ingress]
  - [istio-pilot:ingress, envoy:ingress]
  - [istio-pilot:ingress, kfp-ui:ingress]
  - [istio-pilot:ingress, kubeflow-dashboard:ingress]
  - [istio-pilot:ingress, oidc-gatekeeper:ingress]
  - [istio-pilot:ingress-auth, oidc-gatekeeper:ingress-auth]
  - [istio-pilot:istio-pilot, istio-ingressgateway:istio-pilot]
  - [kfp-api:relational-db, kfp-db:database]
  - [kfp-api:kfp-api, kfp-persistence:kfp-api]
  - [kfp-api:kfp-api, kfp-ui:kfp-api]
  - [kfp-api:kfp-viz, kfp-viz:kfp-viz]
  - [kfp-api:object-storage, minio:object-storage]
  - [kfp-profile-controller:object-storage, minio:object-storage]
  - [kfp-ui:object-storage, minio:object-storage]
  - [kubeflow-profiles, kubeflow-dashboard]
  - [kubeflow-dashboard:links, kfp-ui:dashboard-links]
  - [mlmd:grpc, envoy:grpc]
  - [mlmd:grpc, kfp-metadata-writer:grpc]

• configure dashboard access
• clone this repo and checkout to the pr's branch
• build the rock with tox -e pack
• export the rock to docker with tox -e export-to-docker
• inject the image into the microk8s image cache

  docker save argoexec > myargo.tar
  microk8s ctr image import myargo.tar

• change the executor image to use the rock

  juju config argo-controller executor-image=docker.io/library/argoexec:3.3.10

• open the dashboard and create an experiment from the example pipelines like the [Tutorial] DSL - Data passing in python components Pipeline
• start a Pipeline run for the experiment you created
• check that the pipeline run succeeds