Merge branch '72.fix-404-error' into 'main'

Integrate new gbs-downloader for SDMF download issue fix

Closes #72

See merge request !64

obelisk/dep/gbs-downloader/git.json

 {
   "url": "https://whetstone.private.storage/privatestorage/gbs-downloader",
-  "rev": "920ac7c109869fd3923ed24de26446d62faaec07",
-  "sha256": "1404y7ljyr32la8jrbcb3cla2s4w4i2xq8yyzxgaxxz0z25x1zx2",
+  "rev": "915f54ce7f0a415c089101d1aa56244e53471c0c",
+  "sha256": "14957pr2hqp9mkar6zvlrb5rnmx5jiqadj447vxwwn7m35rggpx5",
   "private": false,
   "fetchSubmodules": false,
-  "branch": "expose-directory-download-error"
+  "branch": "main"
 }