Add workflows to update Docker images for E2E tests

test/docker/task-timew.dockerfile

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+###############################################################################
+#
+# Copyright 2023, Gothenburg Bit Factory
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+#
+# https://www.opensource.org/licenses/mit-license.php
+#
+###############################################################################
+
+ARG TASK_IMAGE
+ARG TIMEW_IMAGE
+
+FROM ${TIMEW_IMAGE} AS timew
+
+FROM ${TASK_IMAGE} AS task
+
+# Install Timewarrior
+COPY --from=timew /usr/local/bin/timew /usr/local/bin
+
+# Initialize Timewarrior
+WORKDIR /root/
+RUN timew :yes