Engineering - use specific image version (microsoft#160878) (microsoft#160930)

Co-authored-by: Ladislau Szomoru <3372902+lszomoru@users.noreply.github.com>

Author: mjbvz

build/azure-pipelines/product-build-pr.yml

@@ -26,7 +26,10 @@ jobs:
   - ${{ if ne(variables['VSCODE_CIBUILD'], true) }}:
     - job: Compile
       displayName: Compile & Hygiene
-      pool: vscode-1es-vscode-linux-20.04
+      pool:
+        name: vscode-1es-vscode-linux-20.04
+        demands:
+          - ImageVersionOverride -equals 40.0.0
       timeoutInMinutes: 30
       variables:
         VSCODE_ARCH: x64
@@ -37,7 +40,10 @@ jobs:
 
     - job: Linuxx64UnitTest
       displayName: Linux (Unit Tests)
-      pool: vscode-1es-vscode-linux-20.04
+      pool:
+        name: vscode-1es-vscode-linux-20.04
+        demands:
+          - ImageVersionOverride -equals 40.0.0
       timeoutInMinutes: 30
       variables:
         VSCODE_ARCH: x64
@@ -54,7 +60,10 @@ jobs:
 
     - job: Linuxx64IntegrationTest
       displayName: Linux (Integration Tests)
-      pool: vscode-1es-vscode-linux-20.04
+      pool:
+        name: vscode-1es-vscode-linux-20.04
+        demands:
+          - ImageVersionOverride -equals 40.0.0
       timeoutInMinutes: 30
       variables:
         VSCODE_ARCH: x64
@@ -71,7 +80,10 @@ jobs:
 
     - job: Linuxx64SmokeTest
       displayName: Linux (Smoke Tests)
-      pool: vscode-1es-vscode-linux-20.04
+      pool:
+        name: vscode-1es-vscode-linux-20.04
+        demands:
+          - ImageVersionOverride -equals 40.0.0
       timeoutInMinutes: 30
       variables:
         VSCODE_ARCH: x64
@@ -89,7 +101,10 @@ jobs:
   - ${{ if eq(variables['VSCODE_CIBUILD'], true) }}:
     - job: Linuxx64MaintainNodeModulesCache
       displayName: Linux (Maintain node_modules cache)
-      pool: vscode-1es-vscode-linux-20.04
+      pool:
+        name: vscode-1es-vscode-linux-20.04
+        demands:
+          - ImageVersionOverride -equals 40.0.0
       timeoutInMinutes: 30
       variables:
         VSCODE_ARCH: x64