Fix checkstyle tests (#104)

## What is the goal of this PR?

Currently, checkstyle tests are broken due to old year in the header (2020)

## What are the changes implemented in this PR?

Update license headers

Author: vmax

.bazelrc

@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2020 Grakn Labs
+# Copyright (C) 2021 Grakn Labs
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as

.gitignore

@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2020 Grakn Labs
+# Copyright (C) 2021 Grakn Labs
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as

.grabl/automation.yml

@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2020 Grakn Labs
+# Copyright (C) 2021 Grakn Labs
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as

dependencies/graknlabs/repositories.bzl

@@ -21,5 +21,5 @@ def graknlabs_dependencies():
     git_repository(
         name = "graknlabs_dependencies",
         remote = "https://github.com/graknlabs/dependencies",
-        commit = "f40b54f36acc91f1ef089058773ec0304dc38ce8", # sync-marker: do not remove this comment, this is used for sync-dependencies by @graknlabs_dependencies
+        commit = "b602038674e26cbdc9c0959e5e4de8938867e9b9", # sync-marker: do not remove this comment, this is used for sync-dependencies by @graknlabs_dependencies
     )

grpc/python/requirements.txt

@@ -0,0 +1,17 @@
+#
+# Copyright (C) 2021 Grakn Labs
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+#
+