Update VERSION to 2.26.6 and create release notes (#817)

## Usage and product changes

We update VERSION to 2.26.6 and create release notes.

Author: dmitrii-ubskii

RELEASE_NOTES_LATEST.md

@@ -1,6 +1,6 @@
 ### Distribution
 
-TypeDB Studio is available for Linux, Mac and Windows. [Download TypeDB Studio 2.26.6-rc3.](https://cloudsmith.io/~typedb/repos/public-release/packages/?q=name:^typedb-studio+version:2.26.6-rc3)
+TypeDB Studio is available for Linux, Mac and Windows. [Download TypeDB Studio 2.26.6.](https://cloudsmith.io/~typedb/repos/public-release/packages/?q=name:^typedb-studio+version:2.26.6)
 
 For Mac Intel and Mac ARM, TypeDB Studio is also available through Homebrew:
 

VERSION

@@ -1 +1 @@
-2.26.6-rc3
+2.26.6

dependencies/vaticle/repositories.bzl

@@ -28,7 +28,7 @@ def vaticle_dependencies():
     git_repository(
         name = "vaticle_dependencies",
         remote = "https://github.com/vaticle/dependencies",
-        commit = "cd00aa9bc16bc2eb857b9b5e4d7a301bf19908dc",  # sync-marker: do not remove this comment, this is used for sync-dependencies by @vaticle_dependencies
+        commit = "08d4e3bafb5a90db76eb5188be6f90bee564eb01", # sync-marker: do not remove this comment, this is used for sync-dependencies by @vaticle_dependencies
     )
 
 def vaticle_force_graph():
@@ -42,12 +42,12 @@ def vaticle_typeql():
     git_repository(
         name = "vaticle_typeql",
         remote = "https://github.com/vaticle/typeql",
-        tag = "2.26.6-rc0",  # sync-marker: do not remove this comment, this is used for sync-dependencies by @vaticle_typeql
+        tag = "2.26.6",  # sync-marker: do not remove this comment, this is used for sync-dependencies by @vaticle_typeql
     )
 
 def vaticle_typedb_driver():
     git_repository(
         name = "vaticle_typedb_driver",
         remote = "https://github.com/vaticle/typedb-driver",
-        tag = "2.26.6-rc1",  # sync-marker: do not remove this comment, this is used for sync-dependencies by @vaticle_typedb_driver
+        tag = "2.26.6",  # sync-marker: do not remove this comment, this is used for sync-dependencies by @vaticle_typedb_driver
     )