Launch sticky-ad-padding-bottom (ampproject#29669)

Author: powerivq

build-system/global-configs/canary-config.json

@@ -35,6 +35,7 @@
   "swg-gpay-native": 1,
   "version-locking": 1,
   "amp-ad-no-center-css": 0,
+  "sticky-ad-padding-bottom": 1,
   "analytics-chunks": 1,
   "ad-adsense-gam-round-params": 0.2,
   "render-on-idle-fix": 1

build-system/global-configs/prod-config.json

@@ -35,7 +35,7 @@
   "version-locking": 1,
   "amp-ad-no-center-css": 0,
   "analytics-chunks": 1,
-  "sticky-ad-padding-bottom": 0.05,
+  "sticky-ad-padding-bottom": 1,
   "render-on-idle-fix": 1,
   "ad-adsense-gam-round-params": 0.2
 }