Docker CI Updates (#5909)

* Update docker image - base python version

- Also, build docker image on PR if any docker-related files have changed

* Update setuptools

* Update base level packages for docker image

* Reduce version

* Include docker workflow in filter

* Revert to python 3.10

* Remove call to upgrade setuptools

* Try newer version of setuptools

* Remove reliance on "minimal"

* Fix package URL

* Whoops. Fix typo

InvenTree/plugin/test_api.py

@@ -23,8 +23,8 @@ class PluginDetailAPITest(PluginMixin, InvenTreeAPITestCase):
         """Setup for all tests."""
         self.MSG_NO_PKG = 'Either packagename of URL must be provided'
 
-        self.PKG_NAME = 'minimal'
-        self.PKG_URL = 'git+https://github.com/geoffrey-a-reed/minimal'
+        self.PKG_NAME = 'inventree-brother-plugin'
+        self.PKG_URL = 'git+https://github.com/inventree/inventree-brother-plugin'
         super().setUp()
 
     def test_plugin_install(self):
@@ -71,7 +71,7 @@ class PluginDetailAPITest(PluginMixin, InvenTreeAPITestCase):
             {
                 'confirm': True,
                 'url': self.PKG_URL,
-                'packagename': 'minimal',
+                'packagename': self.PKG_NAME,
             },
             expected_code=201,
         ).data