ci: Fix Azure PR Builds

.ci/templates/build-single.yml

@@ -1,11 +1,13 @@
 parameters:
   artifactSource: 'true'
+  cache: 'false'
 
 steps:
 - task: DockerInstaller@0
   displayName: 'Prepare Environment'
   inputs:
     dockerVersion: '17.09.0-ce'
+- ${{ if eq(parameterscache, 'true') }}:
   - task: CacheBeta@0
     displayName: 'Cache Build System'
     inputs:

.ci/templates/build-standard.yml

@@ -20,3 +20,4 @@ jobs:
   - template: ./build-single.yml
     parameters:
       artifactSource: 'false'
+      cache: $(parameters.cache)

.ci/templates/build-testing.yml

@@ -30,3 +30,4 @@ jobs:
     - template: ./build-single.yml
       parameters:
         artifactSource: 'false'
+        cache: 'false'

.ci/yuzu-mainline.yml

@@ -21,3 +21,5 @@ stages:
   dependsOn: format
   jobs:
   - template: ./templates/build-standard.yml
+    parameters:
+      cache: 'true'

.ci/yuzu-verify.yml

@@ -15,4 +15,6 @@ stages:
   dependsOn: format
   jobs:
   - template: ./templates/build-standard.yml
+    parameters:
+      cache: 'false'
   - template: ./templates/build-testing.yml