fix recently added tags

[sylfn]

1.21.7 added some tags, but LMFT and KubeJS complained about them:

[19:29:43] [Worker-ResourceReload-10/WARN] [io.wi.lm.LMFTCommon/]: [Load My F***ing Tags]: Couldn't load certain entries within the tag c:ore_rates/sparse: #spectrum:blackslag_ores (from mod/spectrum)
[19:29:43] [Worker-ResourceReload-10/WARN] [io.wi.lm.LMFTCommon/]: [Load My F***ing Tags]: Couldn't load certain entries within the tag c:gems: spectrum:gemstone_shards (from mod/spectrum)
[19:29:43] [Render thread/ERROR] [KubeJS/]: Couldn't load tag c:ore_rates/sparse as it is missing following references: 
  #spectrum:blackslag_ores (from mod/spectrum)
[19:29:43] [Render thread/ERROR] [KubeJS/]: Couldn't load tag c:gems as it is missing following references: 
  spectrum:gemstone_shards (from mod/spectrum)

[DaFuqs]

Thank you!