Lookup submision IDs by strategic metadata

[jerbaroo]

This PR adds the lookup_submission_ids_by_strategic_metadata method to ProducerClient, which will return the submission IDs of in-progress subsmissions that match ALL of the provided strategic metadata key-value pairs.

    def lookup_submission_ids_by_strategic_metadata(
        self, strategic_metadata: dict[str, int]
    ) -> list[SubmissionId]:
        """Attempts to find in-progress submissions where the strategic metadata
        of that submission includes all of the key-value pairs of the given
        'strategic_metadata'. A matching submission must include all of the
        given key-value pairs, but it may also contain other key-value pairs.

        Raises:
        - `LookupIdsWithEmptyStrategicMetadataError` if the provided
          'strategic_metadata' contained no key-value pairs to look for.

        """