Merge branch 'prepare-release-2021.6rc2' into 'release/2021.6'

Prepare release 2021.6rc2

See merge request AlekSIS/official/AlekSIS!66

meta/aleksis-builddeps/pyproject.toml

 [tool.poetry]
 name = "AlekSIS-Builddeps"
-version = "2021.06b0"
+version = "2021.6rc2"
 packages = []
 
 description = "AlekSIS (School Information System) — Build/Dev dependencies for apps"

meta/aleksis/pyproject.toml

 [tool.poetry]
 name = "AlekSIS"
-version = "2021.6rc1"
+version = "2021.6rc2"
 packages = [ { include = "aleksis_meta" } ]
 include = ["LICNECE.rst"]
 readme = "README.rst"
@@ -20,11 +20,11 @@ classifiers = [
 
 [tool.poetry.dependencies]
 aleksis-core = "2.0rc2"
-aleksis-app-alsijil = "2.0rc1"
+aleksis-app-alsijil = "2.0rc2"
 aleksis-app-chronos = "2.0rc1"
 aleksis-app-csvimport = { version = "2.0rc1", optional = true }
 aleksis-app-dashboardfeeds = "2.0rc1"
-aleksis-app-hjelp = "2.0rc1"
+aleksis-app-hjelp = "2.0rc2"
 aleksis-app-ldap = { version = "2.0rc1", optional = true } 
 aleksis-app-untis = { version = "2.0rc1", optional = true }