Use cached_get_entity_by

Summary

Replace Crawler._get_entity_by... by cached versions of pylib.

Please track on https://gitlab.indiscale.com/caosdb/customers/umg/management/-/issues/84

Test Environment

unit and int tests

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• Reference related issues
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• Up-to-date JSON schema (or not necessary)
• Appropriate user and developer documentation (or not necessary)
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• All automated tests pass
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• Appropriate user and developer documentation (or not necessary)
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.docker/cert.sh

@@ -43,7 +43,10 @@ function cert() {
     # Certificate is for localhost
     KEYPW="${KEYPW}" openssl req -new -x509 -key caosdb.key.pem \
          -out caosdb.cert.pem -passin env:KEYPW \
-         -subj "/C=/ST=/L=/O=/OU=/CN=${CAOSHOSTNAME}"
+         -subj "/C=/ST=/L=/O=example/OU=example/CN=${CAOSHOSTNAME}" \
+         -days 365 \
+         -addext "subjectAltName = DNS:${CAOSHOSTNAME}" \
+         -addext "certificatePolicies = 1.2.3.4"
     KEYPW="${KEYPW}" KEYSTOREPW="$KEYSTOREPW" openssl pkcs12 -export \
          -inkey caosdb.key.pem -in caosdb.cert.pem -out all-certs.pkcs12 \
          -passin env:KEYPW -passout env:KEYPW