docs ci fix (#745)

Author: Mr3zee

.github/workflows/docs.yml

@@ -172,8 +172,9 @@ jobs:
         with:
           name: kotlinx-rpc
       - name: Unzip artifact
+        # this step runs in a container without bash, so the script must be POSIX sh compatible
         run: |
-          set -euo pipefail
+          set -eu
           unzip -O UTF-8 -qq '${{ env.ALGOLIA_ARTIFACT }}' -d algolia-indexes
           env algolia-key='${{env.ALGOLIA_KEY}}' java -jar /opt/builder/help-publication-agent.jar \
           update-index \
@@ -182,4 +183,4 @@ jobs:
           --product '${{env.CONFIG_JSON_PRODUCT}}' \
           --version '${{env.CONFIG_JSON_VERSION}}' \
           --index-directory algolia-indexes/ \
-          2>&1 | tee algolia-update-index-log.txt
+          2>&1