refactor: Make tables vector required for connector start

[karolisg]

In this PR arguments of start method in connector trait changes from

 fn start(
        &self,
        last_checkpoint: Option<(u64, u64)>,
        ingestor: &Ingestor,
        tables: Option<Vec<TableInfo>>,
    ) -> Result<(), ConnectorError>;

to

 fn start(
        &self,
        last_checkpoint: Option<(u64, u64)>,
        ingestor: &Ingestor,
        tables: Vec<TableInfo>,
    ) -> Result<(), ConnectorError>;

This was done to match current dozer configuration structure, which doesn't allow running connectors without defining sources (tables).

[coveralls]

Pull Request Test Coverage Report for Build 4274260879

• 7 of 72 (9.72%) changed or added relevant lines in 20 files are covered.
• 46 unchanged lines in 8 files lost coverage.
• Overall coverage increased (+0.2%) to 72.917%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
dozer-ingestion/src/connectors/ethereum/log/connector.rs	0	1	0.0%
dozer-ingestion/src/connectors/ethereum/log/sender.rs	0	1	0.0%
dozer-ingestion/src/connectors/ethereum/log/tests/helper.rs	0	1	0.0%
dozer-ingestion/src/connectors/ethereum/trace/connector.rs	0	1	0.0%
dozer-ingestion/src/connectors/ethereum/trace/tests.rs	0	1	0.0%
dozer-ingestion/src/connectors/kafka/connector.rs	0	1	0.0%
dozer-ingestion/src/connectors/kafka/test_utils.rs	0	1	0.0%
dozer-ingestion/src/connectors/postgres/test_utils.rs	0	1	0.0%
dozer-ingestion/src/connectors/postgres/tests/continue_replication_tests.rs	0	1	0.0%
dozer-ingestion/src/connectors/snowflake/tests.rs	0	1	0.0%

Files with Coverage Reduction	New Missed Lines	%
dozer-api/src/grpc/shared_impl/filter/mod.rs	1	91.89%
dozer-api/src/grpc/shared_impl/mod.rs	1	86.02%
dozer-ingestion/src/connectors/kafka/connector.rs	1	0%
dozer-ingestion/src/connectors/postgres/snapshotter.rs	1	0%
dozer-ingestion/src/connectors/snowflake/connector.rs	1	0%
dozer-api/src/grpc/typed/tests/service.rs	2	97.8%
dozer-core/src/executor/receiver_loop.rs	10	95.74%
dozer-ingestion/src/connectors/object_store/schema_helper.rs	29	51.67%

Totals
Change from base Build 4270817525:	0.2%
Covered Lines:	27565
Relevant Lines:	37803

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💛 - Coveralls