feat: update cap-app-proxy image tags to 1.3750.0

fix preview of promotion properties (codefresh-io/argo-platform#6661)

Author: ATGardner

charts/gitops-runtime/values.yaml

@@ -564,14 +564,14 @@ app-proxy:
           tag: 1.1.15-main
   image:
     repository: quay.io/codefresh/cap-app-proxy
-    tag: 1.3735.0
+    tag: 1.3750.0
     pullPolicy: IfNotPresent
   # -- Extra volume mounts for main container
   extraVolumeMounts: []
   initContainer:
     image:
       repository: quay.io/codefresh/cap-app-proxy-init
-      tag: 1.3735.0
+      tag: 1.3750.0
       pullPolicy: IfNotPresent
     command:
       - ./init.sh