perf: improve scalability of session api (#9635)

This pull request improves the scalability of the session API by
enhancing middleware tracing and refining SQL query behavior for user
authentication methods.

# Which Problems Are Solved

- Eventstore subscriptions locked each other during they wrote the
events to the event channels of the subscribers in push.
- `ListUserAuthMethodTypesRequired` query used `Bitmap heap scan` to
join the tables needed.
- The auth and oidc package triggered projections often when data were
read.
- The session API triggered the user projection each time a user was
searched to write the user check command.

# How the Problems Are Solved

- the `sync.Mutex` was replaced with `sync.RWMutex` to allow parallel
read of the map
- The query was refactored to use index scans only
- if the data should already be up-to-date `shouldTriggerBulk` is set to
false
- as the user should already exist for some time the trigger was
removed.

# Additional Changes

- refactoring of `tracing#Span.End` calls

# Additional Context

- part of https://github.com/zitadel/zitadel/issues/9239

---------

Co-authored-by: Tim Möhlmann <tim+github@zitadel.com>

internal/execution/execution.go

@@ -42,7 +42,7 @@ func CallTargets(
 	info ContextInfo,
 ) (_ interface{}, err error) {
 	ctx, span := tracing.NewSpan(ctx)
-	defer span.EndWithError(err)
+	defer func() { span.EndWithError(err) }()
 
 	for _, target := range targets {
 		// call the type of target
@@ -72,7 +72,7 @@ func CallTarget(
 	info ContextInfoRequest,
 ) (res []byte, err error) {
 	ctx, span := tracing.NewSpan(ctx)
-	defer span.EndWithError(err)
+	defer func() { span.EndWithError(err) }()
 
 	switch target.GetTargetType() {
 	// get request, ignore response and return request and error for handling in list of targets