Fix failing products boolean filter

[korycins]

I want to merge this change because it fixes the case when filtering via the boolean attribute, that doesn't exist on Saleor side.

{
  products(
    first: 12
    channel: "default-channel"
    filter: {attributes: {slug: "bb", boolean: true}}
  ) {
    edges {
      node {
        id
      }
    }
  }
}

Could raise an unhandled exception when bb attribute doesn't exist.

Covers https://linear.app/saleor/issue/MERX-417/passing-non-existing-attribute-slug-crashes-product-filtering

Port of changes from: #16112

Impact

• New migrations
• New/Updated API fields or mutations
• Deprecated API fields or mutations
• Removed API types, fields, or mutations

Docs

• Link to documentation:

Pull Request Checklist

• Privileged queries and mutations are either absent or guarded by proper permission checks
• Database queries are optimized and the number of queries is constant
• Database migrations are either absent or optimized for zero downtime
• The changes are covered by test cases
• All new fields/inputs/mutations have proper labels added (ADDED_IN_X, PREVIEW_FEATURE, etc.)
• All migrations have proper dependencies
• All indexes are added concurrently in migrations
• All RunSql and RunPython migrations have revert option defined

[db-queries]

Here is the report for 6ff4e06 (saleor:fix-failing-product-boolean-filter-3-16)
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