Revert "Test updating agent version. If this works I'll update the other pipelines"

This reverts commit 6537d83e1b.

vsts/pipelines/nightly.yml

@@ -58,7 +58,7 @@ stages:
       pool:
         name: AzurePipelines-EO
         demands:
-          - ImageOverride -equals AzurePipelinesUbuntu22.04compliant
+          - ImageOverride -equals AzurePipelinesUbuntu20.04compliant
       variables:
         skipComponentGovernanceDetection: true
       steps:
@@ -97,7 +97,7 @@ stages:
           pool:
             name: AzurePipelines-EO
             demands:
-              - ImageOverride -equals AzurePipelinesUbuntu23.04compliant
+              - ImageOverride -equals AzurePipelinesUbuntu20.04compliant
           timeoutInMinutes: 480
           steps:
           - script: |
@@ -123,7 +123,7 @@ stages:
       pool:
         name: AzurePipelines-EO
         demands:
-          - ImageOverride -equals AzurePipelinesUbuntu22.04compliant
+          - ImageOverride -equals AzurePipelinesUbuntu20.04compliant
       timeoutInMinutes: 480
       steps:
       - template: templates/_builderTemplate.yml
@@ -135,7 +135,7 @@ stages:
       pool:
         name: AzurePipelines-EO
         demands:
-          - ImageOverride -equals AzurePipelinesUbuntu22.04compliant
+          - ImageOverride -equals AzurePipelinesUbuntu20.04compliant
       # Building runtime images can take a long time due to our PHP images
       timeoutInMinutes: 480
       steps:

vsts/pipelines/validation.yml

@@ -66,7 +66,7 @@ jobs:
     pool:
       name: AzurePipelines-EO
       demands:
-        - ImageOverride -equals AzurePipelinesUbuntu22.04compliant
+        - ImageOverride -equals AzurePipelinesUbuntu20.04compliant
     variables:
     - group: Oryx
     timeoutInMinutes: 480
@@ -92,7 +92,7 @@ jobs:
   pool:
     name: AzurePipelines-EO
     demands:
-      - ImageOverride -equals AzurePipelinesUbuntu22.04compliant
+      - ImageOverride -equals AzurePipelinesUbuntu20.04compliant
   timeoutInMinutes: 480
   steps:
   - template: templates/_builderTemplate.yml
@@ -103,7 +103,7 @@ jobs:
   pool:
     name: AzurePipelines-EO
     demands:
-      - ImageOverride -equals AzurePipelinesUbuntu22.04compliant
+      - ImageOverride -equals AzurePipelinesUbuntu20.04compliant
   variables:
   - group: Oryx
   timeoutInMinutes: 480