feat(storage): generic cache interface (#8628)

# Which Problems Are Solved

We identified the need of caching.
Currently we have a number of places where we use different ways of
caching, like go maps or LRU.
We might also want shared chaches in the future, like Redis-based or in
special SQL tables.

# How the Problems Are Solved

Define a generic Cache interface which allows different implementations.

- A noop implementation is provided and enabled as.
- An implementation using go maps is provided
  - disabled in defaults.yaml
  - enabled in integration tests
- Authz middleware instance objects are cached using the interface.

# Additional Changes

- Enabled integration test command raceflag
- Fix a race condition in the limits integration test client
- Fix a number of flaky integration tests. (Because zitadel is super
fast now!) 🎸 🚀

# Additional Context

Related to https://github.com/zitadel/zitadel/issues/8648

internal/query/query.go

@@ -11,6 +11,7 @@ import (
 	"golang.org/x/text/language"
 
 	"github.com/zitadel/zitadel/internal/api/authz"
+	"github.com/zitadel/zitadel/internal/cache"
 	sd "github.com/zitadel/zitadel/internal/config/systemdefaults"
 	"github.com/zitadel/zitadel/internal/crypto"
 	"github.com/zitadel/zitadel/internal/database"
@@ -26,6 +27,7 @@ type Queries struct {
 	eventstore   *eventstore.Eventstore
 	eventStoreV4 es_v4.Querier
 	client       *database.DB
+	caches       *Caches
 
 	keyEncryptionAlgorithm crypto.EncryptionAlgorithm
 	idpConfigEncryption    crypto.EncryptionAlgorithm
@@ -47,6 +49,7 @@ func StartQueries(
 	es *eventstore.Eventstore,
 	esV4 es_v4.Querier,
 	querySqlClient, projectionSqlClient *database.DB,
+	caches *cache.CachesConfig,
 	projections projection.Config,
 	defaults sd.SystemDefaults,
 	idpConfigEncryption, otpEncryption, keyEncryptionAlgorithm, certEncryptionAlgorithm crypto.EncryptionAlgorithm,
@@ -86,6 +89,10 @@ func StartQueries(
 	if startProjections {
 		projection.Start(ctx)
 	}
+	repo.caches, err = startCaches(ctx, caches)
+	if err != nil {
+		return nil, err
+	}
 
 	return repo, nil
 }