#### Why this change was made
Replaced the `ctf` module dependency with a forked version hosted on GitHub:
- Ensures compatibility with recent updates or fixes in the forked version.
- Removes reliance on the older `ocm.software` hosted variant.

#### Key changes
- Introduced `replace` directive in `go.mod` to point to the forked dependency.
- Updated `go.sum` to reflect the new checksums for the replaced module.
- Removed outdated `ctf` module references.

#### Implications
- Resolves potential issues associated with the older dependency version.
- Aligns the project with the updated forked repository to improve maintainability.

Signed-off-by: Fabian Burth <fabian.burth@sap.com>

…chive handling

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#### Why this change was made
- Updated `ctf.OpenCTFByFileExtension` to discard unused return values for clarity and correctness.
- Fixed potential misuse in the credential cache retrieval logic by safely accessing the `store`.

---

#### Key changes
- Switched to explicitly ignoring the unused `format` value from `ctf.OpenCTFByFileExtension` for better readability.
- Removed unnecessary variable destructuring in `credential_cache.go` to prevent silent errors.

---

#### Implications
- Enhances code maintainability by removing misleading or redundant constructs.
- Reduces the chance of introducing unexpected behavior in future updates.

Signed-off-by: Fabian Burth <fabian.burth@sap.com>

---

#### Why this change was made
- Inserted a blank line in `go.mod` to follow standard formatting conventions.

#### Key changes
- Added a blank line between the `replace` directive and `require` block for improved readability.

#### Implications
- Ensures adherence to Go module formatting best practices.
- Enhances the readability and maintainability of `go.mod`.

Signed-off-by: Fabian Burth <fabian.burth@sap.com>

---

#### Why this change was made
Refactored the repository provider and caching mechanisms for improved readability, maintainability, and safety:
- Simplified store caching with `loadOrStore` to reduce boilerplate code and ensure thread safety.
- Modularized `NewFromCTFRepoV1` by delegating store creation to `NewStoreFromCTFRepoV1`, enhancing composability.

---

#### Key changes
- Replaced `storeCache.get` and `storeCache.add` methods with `loadOrStore` for atomic cache operations.
- Decoupled store creation logic into `NewStoreFromCTFRepoV1` for easier reuse.
- Updated concurrency handling in `Resolve` to use mutual exclusion for safety.
- Adjusted dependencies in `go.mod` and `go.sum` to use `ctf v0.3.0`.

---

#### Implications
- Reduces redundancy and potential race conditions in cache handling.
- Makes repository creation logic modular and easier to maintain.
- Updates dependency for compatibility with recent changes.

Signed-off-by: Fabian Burth <fabian.burth@sap.com>

---

#### Why this change was made
- Removed the redundant third return value (`store`) in `NewFromCTFRepoV1` calls within repository tests.
- Adjusted test logic to align with the updated function signature.

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#### Key changes
- Refactored `repository_test.go` to exclude the unused `store` variable.
- Updated assertions to maintain proper error handling without the removed return value.

---

#### Implications
- Enhances code clarity and reduces unnecessary complexity in test cases.
- Aligns with recent modularization and simplifications in repository creation logic.

Signed-off-by: Fabian Burth <fabian.burth@sap.com>

---

#### Why this change was made
- Improved concurrency safety in test cases for `ComponentVersion` operations.
- Introduced a thread-safe `storeCache` to manage repository stores.
- Replaced `tags` locking mechanism in `store.go` for stricter mutual exclusion.

---

#### Key changes
- Added a new `storeCache` implementation to `provider` for atomic store handling, ensuring consistent behavior across multiple threads.
- Refactored tests to simulate concurrent access scenarios with isolated versions to prevent blob write races.
- Enhanced `Tags` method in `store.go` to use exclusive locking for race prevention.
- Removed redundant `storeCache` implementation from `credential_cache.go`.

---

#### Implications
- Improves test reliability in simulated concurrent repository operations.
- Reduces the risk of data corruption and races in repository store caching and blob management.
- Simplifies and centralizes store caching logic for better maintainability.

Signed-off-by: Fabian Burth <fabian.burth@sap.com>

Signed-off-by: Fabian Burth <fabian.burth@sap.com>

Signed-off-by: Fabian Burth <fabian.burth@sap.com>

Signed-off-by: Fabian Burth <fabian.burth@sap.com>