tests: wait for stable metrics in delayed enablement test#26600

bharathv merged 1 commit intoredpanda-data:devredpanda-data/redpanda:devfrom

mmaslankaprv:CORE-9922-fix-iceberg-delayed-enablement-test-2mmaslankaprv/redpanda:CORE-9922-fix-iceberg-delayed-enablement-test-2Copy head branch name to clipboard