integrate against releases of tahoe-ssk and tahoe-great-black-swamp

new versions of both required for fixes involving incompatible API changes

cabal.project

@@ -2,9 +2,9 @@ packages: .
           -- These aren't released on hackage yet so we have to grab them
           -- straight from the vcs host.  Probably should do some releases
           -- soon.
-          ../tahoe-ssk
+          https://whetstone.private.storage/privatestorage/tahoe-ssk/-/archive/0.2.0.0/tahoe-ssk-0.2.0.0.tar.gz
           https://whetstone.private.storage/privatestorage/tahoe-chk/-/archive/0.1.0.1/tahoe-chk-0.1.0.1.tar.gz
-          https://whetstone.private.storage/privatestorage/tahoe-great-black-swamp/-/archive/0.2.0.2/tahoe-great-black-swamp-0.2.0.2.tar.gz
+          https://whetstone.private.storage/privatestorage/tahoe-great-black-swamp/-/archive/0.3.0.0/tahoe-great-black-swamp-0.3.0.0.tar.gz
 
 package zlib
         -- Turn on discovery of the underlying zlib using pkg-config.  This

gbs-downloader.cabal

@@ -111,8 +111,8 @@ library
     , servant-client
     , servant-client-core
     , tahoe-chk
-    , tahoe-great-black-swamp  >=0.2 && <0.3
-    , tahoe-ssk
+    , tahoe-great-black-swamp  >=0.3 && <0.4
+    , tahoe-ssk                >=0.2 && <0.3
     , text
     , yaml
 
@@ -168,7 +168,7 @@ executable gbs-download-sdmf
     , containers
     , gbs-downloader
     , megaparsec
-    , tahoe-ssk
+    , tahoe-ssk       >=0.2 && <0.3
     , text
     , yaml
 
@@ -211,7 +211,7 @@ test-suite gbs-downloader-test
     , gbs-downloader
     , hedgehog
     , tahoe-chk
-    , tahoe-ssk
+    , tahoe-ssk           >=0.2 && <0.3
     , tasty
     , tasty-hedgehog
     , tasty-hunit