[ci] Enable the all_packages tasks (#2724)

script/configs/exclude_all_packages_app.yaml

@@ -0,0 +1,10 @@
+# This list should be kept as short as possible, and things should remain here
+# only as long as necessary, since in general the goal is for all of the latest
+# versions of packages to be mutually compatible.
+#
+# An example use case for this list would be to temporarily add packages while
+# updating multiple packages for a breaking change in a common dependency in
+# cases where using a relaxed version constraint isn't possible.
+
+# This is a permament entry, as it should never be a direct app dependency.
+- plugin_platform_interface