Remove downloaded dependency charts from tracking

[Bailonis]

This PR serves to help keep our project aligned with the TRGs and other open-source policies.

In this case, we have added the downloaded dependencies to the .gitignore file to fix issue #40

[gitguardian]

⚠️ GitGuardian has uncovered 14 secrets following the scan of your pull request.

Please consider investigating the findings and remediating the incidents. Failure to do so may lead to compromising the associated services or software components.

🔎 Detected hardcoded secrets in your pull request

GitGuardian id	GitGuardian status	Secret	Commit	Filename
8781932	Assigned	Hashicorp Vault Token	de5546e	env	View secret
8781932	Assigned	Hashicorp Vault Token	1ef17da	.env	View secret
8781932	Assigned	Hashicorp Vault Token	b62de3f	env	View secret
8832579	Assigned	Generic High Entropy Secret	46ce2c1	demand-capacity-mgmt-backend/src/main/java/org/eclipse/tractusx/demandcapacitymgmt/demandcapacitymgmtbackend/services/impl/EDCServiceImpl.java	View secret
8832579	Assigned	Generic High Entropy Secret	6b9100e	demand-capacity-mgmt-backend/src/main/java/org/eclipse/tractusx/demandcapacitymgmt/demandcapacitymgmtbackend/services/impl/EDCServiceImpl.java	View secret
8832579	Assigned	Generic High Entropy Secret	7520efc	demand-capacity-mgmt-backend/src/main/java/org/eclipse/tractusx/demandcapacitymgmt/demandcapacitymgmtbackend/services/impl/EDCServiceImpl.java	View secret
8832579	Assigned	Generic High Entropy Secret	7520efc	demand-capacity-mgmt-backend/src/main/java/org/eclipse/tractusx/demandcapacitymgmt/demandcapacitymgmtbackend/services/impl/EDCServiceImpl.java	View secret
8835346	Assigned	Generic High Entropy Secret	4fa0cc0	charts/edc/consumer/values.yaml	View secret
8835346	Assigned	Generic High Entropy Secret	4fa0cc0	charts/edc/provider/values.yaml	View secret
8835346	Assigned	Generic High Entropy Secret	b815721	charts/edc/consumer/values.yaml	View secret
8835346	Assigned	Generic High Entropy Secret	b815721	charts/edc/provider/values.yaml	View secret
9243936	Assigned	Generic High Entropy Secret	6b9100e	demand-capacity-mgmt-backend/src/main/java/org/eclipse/tractusx/demandcapacitymgmt/demandcapacitymgmtbackend/services/impl/EDCServiceImpl.java	View secret
9243936	Assigned	Generic High Entropy Secret	f4884ba	demand-capacity-mgmt-backend/src/main/java/org/eclipse/tractusx/demandcapacitymgmt/demandcapacitymgmtbackend/services/impl/EDCServiceImpl.java	View secret
9243936	Assigned	Generic High Entropy Secret	589ee63	demand-capacity-mgmt-backend/src/main/java/org/eclipse/tractusx/demandcapacitymgmt/demandcapacitymgmtbackend/services/impl/EDCServiceImpl.java	View secret

🛠 Guidelines to remediate hardcoded secrets

1. Understand the implications of revoking this secret by investigating where it is used in your code.
2. Replace and store your secrets safely. Learn here the best practices.
3. Revoke and rotate these secrets.
4. If possible, rewrite git history. Rewriting git history is not a trivial act. You might completely break other contributing developers' workflow and you risk accidentally deleting legitimate data.

To avoid such incidents in the future consider

• following these best practices for managing and storing secrets including API keys and other credentials
• install secret detection on pre-commit to catch secret before it leaves your machine and ease remediation.

---

<sup>🦉 GitGuardian detects secrets in your source code to help developers and security teams secure the modern development process. You are seeing this because you or someone else with access to this repository has authorized GitGuardian to scan your pull request.

Our GitHub checks need improvements? Share your feedbacks!</sup>