Add v2 dev databases

[chilagrow]

Closes #1154.

Pull Request Overview

This PR adds support for v2 dev databases by introducing new Docker Compose services, updating internal configuration, and adding new workload configurations. The key changes include:

• Adding new Docker Compose services "ferretdb2-dev" and "ferretdb2-dev-secured" and a new postgres service "postgres-documentdb-dev".
• Updating the internal configuration with connection strings for the new dev databases.
• Incorporating new workload configuration entries across multiple example files.

Reviewed Changes

Copilot reviewed 13 out of 13 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
docker-compose.yml	New services added to support ferretdb v2 dev databases
internal/configload/configload.go	Added connection mappings for new dev databases
projects/ycsb-workloadc.yml	Added workload config; naming inconsistency detected
projects/ycsb-workloadb.yml	Added workload config; naming inconsistency detected
projects/mongo-tools.yml	Updated workload config with correct naming for ferretdb2-dev
projects/ycsb-workloadc2.yml	Added workload config; naming inconsistency detected
projects/ycsb-workloadb2.yml	Added workload config; naming inconsistency detected
projects/python-example.yml	Updated workload config with correct naming for ferretdb2-dev and secure
projects/ycsb-workloada.yml	Added workload config; naming inconsistency detected
projects/dotnet-example.yml	Updated workload config with correct naming for ferretdb2-dev and secure
projects/java-example.yml	Updated workload config with correct naming for ferretdb2-dev and secure
projects/nodejs-example.yml	Updated workload config with correct naming for ferretdb2-dev and secure
projects/ycsb-workloada2.yml	Added workload config; naming inconsistency detected

Comments suppressed due to low confidence (6)

projects/ycsb-workloadc.yml:23

• The service name 'ferretdb-dev' is inconsistent with the 'ferretdb2-dev' naming used in docker-compose and internal config; consider renaming it to 'ferretdb2-dev' for consistency.

  ferretdb-dev:

projects/ycsb-workloadb.yml:23

• The service name 'ferretdb-dev' is inconsistent with the new naming convention 'ferretdb2-dev'; please update this to 'ferretdb2-dev' to match the docker-compose and config changes.

  ferretdb-dev:

projects/ycsb-workloadc2.yml:19

• The new workload entry 'ferretdb-dev' does not follow the naming used in other parts of the project; consider renaming it to 'ferretdb2-dev'.

  ferretdb-dev:

projects/ycsb-workloadb2.yml:19

• Renaming 'ferretdb-dev' to 'ferretdb2-dev' would maintain consistency with the docker-compose and config settings.

  ferretdb-dev:

projects/ycsb-workloada.yml:23

• Consider renaming 'ferretdb-dev' to 'ferretdb2-dev' to align with the naming convention introduced in the docker-compose and configuration files.

  ferretdb-dev:

projects/ycsb-workloada2.yml:19

• The service name 'ferretdb-dev' should be updated to 'ferretdb2-dev' for consistency with the new dev database nomenclature.

  ferretdb-dev: