Unity activation not properly supported anymore with support for GameCI Docker images version 3

**Orb version**

After 1.7.0

**Execution environment**

- Executor: all of them
- Target platform: all of them
- Unity Editor version: all of them

**Bug description**

The activation process for Unity changed a bit concerning personal licenses and GameCI images in version 3. To properly support new Unity versions, we need to solve the activation issues.

**How to reproduce**

1. Fork this repository
2. Create a project on CircleCI and connect your fork to it
3. Fill in some environment variables to run the jobs with actual activations for Unity

**Expected behavior**

With valid env variables, good credentials and a valid license, activation should pass.

**Additional details**

https://app.circleci.com/pipelines/github/game-ci/unity-orb/322/workflows/53a92683-693b-4590-96af-e637609074c6/jobs/4081

```
Detected OS: Linux.
The "build-method" parameter is empty. Falling back to the default build script.
++ xvfb-run --auto-servernum '--server-args=-screen 0 640x480x24' unity-editor -projectPath /root/project/Unity2D-Demo-Game-CI-CD/src -quit -batchmode -nographics -buildTarget StandaloneLinux64 -customBuildTarget StandaloneLinux64 -customBuildName StandaloneLinux64 -customBuildPath /root/project/Unity2D-Demo-Game-CI-CD/src/Builds/StandaloneLinux64/ -executeMethod BuildCommand.PerformBuild -logFile /dev/stdout
Unity Editor version: 2022.3.33f1 (b2c853adf198)
Branch: 2022.3/staging
Build type: Release
Batch mode: YES
System name: Linux
Distro version: #63~20.04.1-Ubuntu SMP Mon Mar 25 10:28:36 UTC 2024
Kernel version: 5.15.0-1057-aws
Architecture: x86_64
Available memory: 70717 MB
[Licensing::Module] Trying to connect to existing licensing client channel...
[Licensing::IpcConnector] Connection attempt to the License Client on channel: "LicenseClient-root" failed because channel doesn't exist; code: "0x80000002"
[Licensing::Module] Successfully launched the LicensingClient (PId: 273)
[Licensing::IpcConnector] Successfully connected to the License Client on channel: "LicenseClient-root" at "2024-06-12T19:03:01.653384Z"
[SignatureVerifier] Application signature verification not supported on this platform.
[Licensing::Client] Handshaking with LicensingClient:
Version: 1.15.4+eee609c
Session Id: 65e5e50f375b4871a46eacf65f2b7953
Correlation Id: 4ba3e9de9ae505afd71f05ce91f9204e
External correlation Id: 5161085665695614536
Machine Id: D7nTUnjNAmtsUMcnoyrqkgIbYdM=
[Licensing::Module] Successfully connected to LicensingClient on channel: "LicenseClient-root" (connect: 0.61s, validation: 0.05s, handshake: 0.00s)
[Licensing::IpcConnector] Successfully connected to the License Notification on channel: "LicenseClient-root-notifications" at "2024-06-12T19:03:01.702255Z"
[Licensing::Module] Connected to LicensingClient (PId: 273, launch time: 0.00, total connection time: 0.66s)
[Licensing::Module] Error: Access token is unavailable; failed to update
[Licensing::Client] Successfully updated license
[Licensing::Client] Successfully resolved entitlements
[Licensing::Module] Error: License is not active (com.unity.editor.headless). HasEntitlements will fail.
Pro License: NO
Initialize udev device monitor.
No valid Unity Editor license found. Please activate your license.

Exited with code exit status 1
```