grafana-cli: Diff generated ts directly instead of relying on git (#45815) (#45828)

* Add diffing support to grafana-cli cue gen-ts

* Rely on diff comparison in cuetsify pipeline step

* Ignore *.gen.ts files with eslint

* Chore: Fix lint `sdboyer/cuetsify-compare` (#45818)

* Sync drone

(cherry picked from commit 40645ab19e39ff9b0a12b7ebb13a4dc4c5e1d472)

* Fix lint

(cherry picked from commit c95ece983984432fea029335b2b729b09d76c7eb)

* Sign drone

Co-authored-by: Dimitris Sotirakis <sotirakis.dim@gmail.com>
(cherry picked from commit 60db643983)

Co-authored-by: sam boyer <sdboyer@grafana.com>

scripts/drone/steps/lib.star

@@ -1134,18 +1134,11 @@ def ensure_cuetsified_step():
             'validate-scuemata',
         ],
         'commands': [
-            '# Make sure the git tree is clean.',
-            '# Stashing changes, since packages that were produced in build-backend step are needed.',
-            'git stash',
-            './bin/linux-amd64/grafana-cli cue gen-ts --grafana-root .',
-            '# The above command generates Typescript files (*.gen.ts) from all appropriate .cue files.',
             '# It is required that the generated Typescript be in sync with the input CUE files.',
-            '# ...Modulo eslint auto-fixes...:',
-            'yarn run eslint . --ext .gen.ts --fix',
-            '# If any filenames are emitted by the below script, run the generator command `grafana-cli cue gen-ts` locally and commit the result.',
-            './scripts/clean-git-or-error.sh',
-            '# Un-stash changes.',
-            'git stash pop',
+            '# To enforce this, the following command will attempt to generate Typescript from all',
+            '# appropriate .cue files, then compare with the corresponding (*.gen.ts) file the generated',
+            '# code would have been written to. It exits 1 if any diffs are found.',
+            './bin/linux-amd64/grafana-cli cue gen-ts --grafana-root . --diff',
         ],
     }