chore: add convenience alias to root BUILD file for aspect binary (#8)

BUILD.bazel

diff --git a/BUILD.bazel b/BUILD.bazel
index 3bb4fe4..f2c95ba 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -13,3 +13,8 @@
     ],
     command = "update-repos",
 )
+
+alias(
+    name = "aspect",
+    actual = "//cmd/aspect",
+)