Fixing bad e2e compose file, using invalid variable substitution.

Signed-off-by: Silvin Lubecki <silvin.lubecki@docker.com>

Author: silvin-lubecki

e2e/testdata/attachments.dockerapp/docker-compose.yml

@@ -16,11 +16,11 @@ services:
     deploy:
       resources:
         limits:
-          memory: $memory
+          memory: ${memory}
     healthcheck:
       test: ["/ping", "debug"]
       interval: 2m
-      timeout: $timeout
+      timeout: ${timeout}
   monitor:
     image: busybox:latest
     command: monitor --source ${app.name}-${app.version} $$dollar

e2e/testdata/attachments.dockerapp/parameters.yml

@@ -8,5 +8,5 @@ tty: true
 aport: 10000
 sport: 11000
 dport: 12000
-memory: '100000000'
+memory: "100000000"
 timeout: 10s