Add GitHub workflow to record screenshots when manually triggered.

.github/workflows/recordScreenshots.yml

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+name: Record screenshots
+
+on:
+  workflow_dispatch:
+    inputs:
+      param_branch:
+        description: 'Branch to record the screenshots on'
+        required: true
+        type: string
+
+# Enrich gradle.properties for CI/CD
+env:
+  GRADLE_OPTS: -Dorg.gradle.jvmargs="-Xmx3072m -Dfile.encoding=UTF-8 -XX:+HeapDumpOnOutOfMemoryError" -Dkotlin.daemon.jvm.options="-Xmx2560m" -Dkotlin.incremental=false
+
+jobs:
+  record:
+    name: Record screenshots on branch ${{ inputs.param_branch }}
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: ⏬ Checkout with LFS
+        uses: actions/checkout@v3
+        with:
+          lfs: 'true'
+      - name: ☕️ Use JDK 17
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin' # See 'Supported distributions' for available options
+          java-version: '17'
+      - name: Record screenshots
+        run: "./.github/workflows/scripts/recordScreenshots.sh"
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_REPOSITORY: ${{ secrets.GITHUB_REPOSITORY }}
+          BRANCH: ${{ inputs.param_branch }}

.github/workflows/scripts/recordScreenshots.sh

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+#!/bin/bash
+
+#
+# Copyright (c) 2023 New Vector Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+if [[ -z ${GITHUB_TOKEN} ]]; then
+  echo "Missing GITHUB_TOKEN variable"
+  exit 1
+fi
+
+if [[ -z ${GITHUB_REPOSITORY} ]]; then
+  echo "Missing GITHUB_REPOSITORY variable"
+  exit 1
+fi
+
+if [[ -z ${BRANCH} ]]; then
+  echo "Missing BRANCH variable"
+  exit 1
+fi
+
+./gradlew recordPaparazziDebug --stacktrace -PpreDexEnable=false --max-workers 4 --warn
+
+git config user.name "ElementBot"
+git config user.email "benoitm+elementbot@element.io"
+git fetch --all
+git checkout --track "origin/$BRANCH"
+git add -A
+git commit -m "Update screenshots"
+git push "https://$GITHUB_TOKEN@github.com/$GITHUB_REPOSITORY.git"
+echo "Done!"