Removed builders from eventhubs; removed impl Into<String> from event… #5416

Job	Run time
Lint	33s
Code Style	59s
Get minimum supported rust version	12s
SDK docs	1m 30s
WASM Tests (stable, false)	1m 27s
E2E Tests (stable, false)	1m 5s
WASM Tests (1.76, false)	1m 13s
E2E Tests (1.76, false)	2m 6s
SDK Tests (stable, false)	2m 41s
WASM Tests (nightly, true)	2m 18s
SDK Tests (1.76, false)	2m 54s
E2E Tests (nightly, true)	5m 10s
SDK Tests (nightly, true)	2m 14s
	24m 22s

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