[v8.3.x] chore(drone): switch to using cypress built image for e2e tests (#44050)

* chore(drone): switch to using cypress built image for e2e tests

(cherry picked from commit ec9d6b9ca9)

* Remove volumes - downgrade cypress version

Co-authored-by: Timur Olzhabayev <timur.olzhabayev@grafana.com>

scripts/drone/pipelines/main.star

@@ -14,7 +14,6 @@ load(
     'build_frontend_step',
     'build_plugins_step',
     'package_step',
-    'install_cypress_step',
     'e2e_tests_server_step',
     'e2e_tests_step',
     'build_storybook_step',
@@ -96,8 +95,7 @@ def get_steps(edition, is_downstream=False):
 
     # Insert remaining steps
     build_steps.extend([
-        package_step(edition=edition, ver_mode=ver_mode, include_enterprise2=include_enterprise2, is_downstream=is_downstream),
-        install_cypress_step(),
+        package_step(edition=edition, ver_mode=ver_mode, include_enterprise2=include_enterprise2, is_downstream=is_downstream),        
         e2e_tests_server_step(edition=edition),
         e2e_tests_step('dashboards-suite', edition=edition),
         e2e_tests_step('smoke-tests-suite', edition=edition),

scripts/drone/pipelines/pr.star

@@ -14,7 +14,6 @@ load(
     'test_backend_integration_step',
     'test_frontend_step',
     'package_step',
-    'install_cypress_step',
     'e2e_tests_server_step',
     'e2e_tests_step',
     'build_storybook_step',
@@ -90,7 +89,6 @@ def pr_pipelines(edition):
     # Insert remaining build_steps
     build_steps.extend([
         package_step(edition=edition, ver_mode=ver_mode, include_enterprise2=include_enterprise2, variants=variants),
-        install_cypress_step(),
         e2e_tests_server_step(edition=edition),
         e2e_tests_step('dashboards-suite', edition=edition),
         e2e_tests_step('smoke-tests-suite', edition=edition),

scripts/drone/pipelines/release.star

@@ -18,7 +18,6 @@ load(
     'build_frontend_step',
     'build_plugins_step',
     'package_step',
-    'install_cypress_step',
     'e2e_tests_server_step',
     'e2e_tests_step',
     'build_storybook_step',
@@ -229,7 +228,6 @@ def get_steps(edition, ver_mode):
 
     if not disable_tests:
         build_steps.extend([
-            install_cypress_step(),
             e2e_tests_step('dashboards-suite', edition=edition, tries=3),
             e2e_tests_step('smoke-tests-suite', edition=edition, tries=3),
             e2e_tests_step('panels-suite', edition=edition, tries=3),