chore(apps/ocean-api): removing ocean-api to save CI time (#1985)

#### What this PR does / why we need it:

The high failure rate of docker images recently — to reduce CI time due
to failure and having to retry them. I've removed `apps/ocean-api` , and
`ocean-api-client` is kept intact as it provide the abstraction for both
`playground-api-client` and `whale-api-client` (although not implemented
yet for whale).

.github/governance.yml

@@ -58,7 +58,6 @@ issue:
         - legacy-api
         - ocean-api
         - playground-api
-        - rich-list-api
         - stats-api
         - whale-api
         - website

.github/labeler.yml

@@ -71,11 +71,6 @@ labels:
     matcher:
       files: "apps/playground-api/**"
 
-  - label: apps/rich-list-api
-    sync: true
-    matcher:
-      files: "apps/rich-list-api/**"
-
   - label: apps/stats-api
     sync: true
     matcher:

.github/labels.yml

@@ -80,8 +80,6 @@
   name: apps/ocean-api
 - color: 0581fa
   name: apps/playground-api
-- color: 0581fa
-  name: apps/rich-list-api
 - color: 0581fa
   name: apps/stats-api
 - color: 0581fa

.github/workflows/ci.yml

@@ -86,7 +86,7 @@ jobs:
     strategy:
       matrix:
         platform: [ linux/amd64 ]
-        app: [ legacy-api, ocean-api, playground-api, status-api, whale-api ]
+        app: [ legacy-api, playground-api, status-api, whale-api ]
     steps:
       - name: Set up QEMU
         uses: docker/setup-qemu-action@e81a89b1732b9c48d79cd809d8d81d79c4647a18 # v2.1.0

.github/workflows/release-apps.yml

@@ -13,7 +13,7 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  APPS: 'legacy-api,ocean-api,playground-api,status-api,whale-api'
+  APPS: 'legacy-api,playground-api,status-api,whale-api'
 
 jobs:
   build:
@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        app: [ legacy-api, ocean-api, playground-api, status-api, whale-api ]
+        app: [ legacy-api, playground-api, status-api, whale-api ]
     steps:
       - uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
 

.github/workflows/release-ecr.yml

@@ -9,7 +9,7 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  APPS: 'legacy-api,ocean-api,playground-api,status-api,whale-api'
+  APPS: 'legacy-api,playground-api,status-api,whale-api'
 
 jobs:
   build:
@@ -18,7 +18,7 @@ jobs:
     environment: ECR Release Publishing
     strategy:
       matrix:
-        app: [ legacy-api, ocean-api, playground-api, status-api, whale-api ]
+        app: [ legacy-api, playground-api, status-api, whale-api ]
     steps:
       - uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0