fix: Fix scale rule cache eviction by using rule ids(#6972)

[juicewcode]

Fixes #6972
Fix scale rule cache eviction when rules are deleted.

ScaleRuleCache stores rules using metricName as the map key:
ruleCache.put(rule.getMetricName(), rule);
However, ScaleRuleServiceImpl.delete receives database primary keys and passes them directly to the cache removal method:
scaleRuleCache.removeRulesFromCache(ids);
The database deletion uses the same values as primary keys:
DELETE FROM scale_rule WHERE id IN (...)

Because rule IDs and metric names are different fields, the deleted rule may remain in the in-memory cache.

Changes

• Add removeRulesByIdsFromCache.
• Locate cached rules by their ScaleRuleDO#id.
• Remove matching entries using the existing metric-name map key.
• Add ScaleRuleServiceImpl#delete to use the new method.

Make sure that:

• You have read the contribution guidelines.
• You submit test cases (unit or integration tests) that back your changes.
• Your local test passed ./mvnw clean install -Dmaven.javadoc.skip=true.