Fix mis-scaled signals for subject 019: divide by 1e6 (part 14/33 of full fix for subjects 004,005,008-035,058-060).

sourcedata/braindecode/dataset.zarr/recording_19/data/c/0/0/0

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:8465641e94da50d7dd723bab1f8d0142d104f21fa37d66a74db146e05ebab578
-size 18501600
+oid sha256:3f8ccd09d62f8d72675767015439290d300b176244abef32c712c3a7e3f9c0ff
+size 18498086

sourcedata/braindecode/dataset.zarr/recording_19/data/c/1/0/0

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:8a76c73c417d7a8c01d2105889f9f5b4573c16ac70fa4a2e5147bdb58cc5d58b
-size 11560371
+oid sha256:290b684fac57c02ce46ecc32a35cdc9e162addf7929b76e8d1481aba938fef7f
+size 11559003