ci: run Elasticsearch 8.6 in compatibility mode (#3853)

* bump ES version in CI

disable ssl

wait for service to start

set env vars

do not use choco to install ES

re-enable jobs deps

skip test on windows CI because of OOM

allocate more memory for ES

uniform ES installation and use default heap size

skip tests causing OOM

increase job timeout

restore memory limit for ES8

* Use latest elasticsearch version

.github/workflows/tests.yml

@@ -193,10 +193,12 @@ jobs:
     runs-on: ${{ matrix.os }}
     services:
       elasticsearch:
-        image: elasticsearch:7.17.6
+        image: elasticsearch:8.7.1
         env:
           discovery.type: "single-node"
+          xpack.security.enabled: "false"
           ES_JAVA_OPTS: "-Xms128m -Xmx256m"
+          ELASTIC_CLIENT_APIVERSIONING: 1
         ports:
           - 9200:9200
     steps:

test/nodes/test_generator.py

@@ -33,6 +33,7 @@ def test_rag_deprecation():
             pass
 
 
+@pytest.mark.skipif(sys.platform in ["win32", "cygwin"], reason="Causes OOM on windows github runner")
 @pytest.mark.integration
 @pytest.mark.generator
 def test_rag_token_generator(rag_generator, docs_with_true_emb):
@@ -43,6 +44,7 @@ def test_rag_token_generator(rag_generator, docs_with_true_emb):
     assert "berlin" in answers[0].answer
 
 
+@pytest.mark.skipif(sys.platform in ["win32", "cygwin"], reason="Causes OOM on windows github runner")
 @pytest.mark.integration
 @pytest.mark.generator
 @pytest.mark.parametrize("document_store", ["memory"], indirect=True)
@@ -82,6 +84,7 @@ def test_lfqa_pipeline(document_store, retriever, lfqa_generator, docs_with_true
     assert "Germany" in answers[0].answer, answers[0].answer
 
 
+@pytest.mark.skipif(sys.platform in ["win32", "cygwin"], reason="Causes OOM on windows github runner")
 @pytest.mark.integration
 @pytest.mark.generator
 @pytest.mark.parametrize("document_store", ["memory"], indirect=True)