Update git submodules

* Update plugins/delete-project from branch 'stable-3.7'
  to 8f6ea7eeb22f8b8487d3b433d367272172ea32d1
  - Add support for newer plugin-node-resolve versions
    
    Due to [0] in plugin-node-resolve, it changes the way modules are
    resolved. It now looks at package.json and figures it out from
    there although if the stuff it is looking for is not found
    it falls back to how it did the resolving in older versions.
    Unfortunately there is no config to force the behaviour
    so we have to use the new behaviour.
    
    This is what it looks like:
    
    ```
      "exports": {
        ".": {
          "development": "./development/reactive-element.js",
          "default": "./reactive-element.js"
        },
        ....
        "./decorators.js": {
          "development": "./development/decorators.js",
          "default": "./decorators.js"
        },
        ....
      },
    ```
    
    Thus "./decorators" fails to match "./decorators.js" and so it fails
    to resolve.
    
    
    [0] https://github.com/rollup/plugins/commit/3d60158f21e0b6a5a8a53d9977928e2e148cb885
    
    Change-Id: I7829591e45662ee6028182beb57396b327823275
    

1 files changed, 0 insertions, 0 deletions

diff --git a/plugins/delete-project b/plugins/delete-project
-Subproject 9c4db6de1e3a00d3f3834ffe0114bd1683f57fb
+Subproject 8f6ea7eeb22f8b8487d3b433d367272172ea32d