exp: add --hide-workspace flag to exp show (#10798)

Co-authored-by: Saugat Pachhai (सौगात) <[email protected]>

tests/unit/command/test_experiments.py

@@ -86,6 +86,7 @@ def test_experiments_show(dvc, scm, mocker):
             "--all-commits",
             "--hide-queued",
             "--hide-failed",
+            "--hide-workspace",
             "--sha",
             "--param-deps",
             "-n",
@@ -109,6 +110,7 @@ def test_experiments_show(dvc, scm, mocker):
         all_commits=True,
         hide_queued=True,
         hide_failed=True,
+        hide_workspace=True,
         num=1,
         revs=["foo"],
         sha_only=True,