add ivas-interop-on-merge-request job to float-pc pipeline

      junit:

        - report-junit.xml

### From Float

# Check interop IVAS_cod_test -> IVAS_dec_ref

ivas-interop-on-merge-request:

  extends:

    - .test-job-linux-needs-testv-dir

    - .rules-merge-request-to-float-pc

  stage: test

  needs: ["build-codec-linux-make"]

  timeout: "10 minutes"

  script:

    - *print-common-info

    - *get-commits-behind-count

    - *check-commits-behind-count-in-compare-jobs

    - *merge-request-comparison-setup-codec

    # the next line is dependent on ref-using-main flag in the other tests, but here the flag does not make sense

    - git checkout $source_branch_commit_sha

    - python3 ci/remove_unsupported_testcases.py $PRM_FILES

    # some helper variables - "|| true" to prevent failures from grep not finding anything

    # write to temporary file as workaround for failures observed with piping echo

    - echo $CI_MERGE_REQUEST_TITLE > tmp.txt

    - non_interop_flag=$(grep -c --ignore-case "\[non[ -]*io\]" tmp.txt) || true

    ### prepare pytest

    # Run reference creation, using source branch encoder and main decoder (see .merge-request-comparison-setup-codec)

    - exit_code=0

    - exit_code2=0

    # set timeout for individual testcase runs to 60 seconds

    - testcase_timeout=60

    - python3 -m pytest $TESTS_DIR_CODEC_BE_ON_MR -v --html=report.html --self-contained-html --junit-xml=report-junit.xml --update_ref 1 --ref_encoder_path ./IVAS_cod --ref_decoder_path ./IVAS_dec_ref --testcase_timeout=$testcase_timeout || exit_code=$?

    - zero_failures=$(cat report-junit.xml | grep -c 'failures="0"') || true

    - if [ $zero_failures != 1 ] && [ $non_interop_flag == 0 ]; then echo "Non-interop cases without non-interop flag encountered!"; exit $EXIT_CODE_FAIL; fi

    - if [ $zero_failures != 1 ] && [ $non_interop_flag == 1 ]; then echo "Non-interop cases with non-interop flag encountered"; exit $EXIT_CODE_NON_BE; fi

    - exit 0

  allow_failure:

    exit_codes:

      - 123

  artifacts:

    name: "mr-$CI_MERGE_REQUEST_IID--sha-$CI_COMMIT_SHORT_SHA--stage-$CI_JOB_STAGE--results"

    expire_in: 1 week

    when: always

    paths:

      - report-junit.xml

      - report.html

    expose_as: "interop test results"

    reports:

      junit:

        - report*-junit.xml

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# Complexity measurement jobs

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