kernel: refactored the kernel interface and split creation and execut…

…ion;

With this change we're splitting the creation and execution of a kernel into multiple parts.

This introduces mainly two advantages over the old approach:
    - once the kernel is created, the kernel gets immutable,
      which reduces some of the complexity which was caused due to a mutable kernel
    - having blueprints of the kernel and a factory to build everything
      enables us to build the modules and middlewares without running the kernel
      which makes it easier to build the the same kernel with different configurations

apiserver: added download handler (justtrackio#897)

This release adds a new type of API handler to the apiserver package: The `DownloadHandler` will act like a stream handler but don't require passing a JSON body. The goal is to provide a possibility for the server to answer a clients GET request (i.e. from a HTML anchor) with a streamed response (i.e. a file).

cloud: regenerate lambda api mocks;

cloud: regenerate lambda api mocks;

kernel/stage: kernels will now stop if a module returns an error; (ju…

…sttrackio#888)

grpcserver: introduce grpc server;

appctx/container.go now uses generics; (justtrackio#863)

build(deps): bump github.com/aws/aws-sdk-go-v2/service/resourcegroups…

…taggingapi

Bumps [github.com/aws/aws-sdk-go-v2/service/resourcegroupstaggingapi](https://github.com/aws/aws-sdk-go-v2) from 1.13.3 to 1.13.4.
- [Release notes](https://github.com/aws/aws-sdk-go-v2/releases)
- [Changelog](https://github.com/aws/aws-sdk-go-v2/blob/main/CHANGELOG.md)
- [Commits](aws/aws-sdk-go-v2@service/mgn/v1.13.3...service/xray/v1.13.4)

---
updated-dependencies:
- dependency-name: github.com/aws/aws-sdk-go-v2/service/resourcegroupstaggingapi
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

clous/aws: updated lambda api mock;

metric: only use log level info for metric writers to prevent blocking;