Bump version and update CHANGELOG for core v2.19.0

[dimriou]

No description provided.

[github-actions]

AER Report: CI Core

aer_workflow , commit , Detect Changes , Scheduled Run Frequency , Clean Go Tidy & Generate , Find New Flaky Tests In Chainlink Project / Get Tests To Run , lint , Core Tests (go_core_tests) , Core Tests (go_core_tests_integration) , Find New Flaky Tests In Deployment Project , Core Tests (go_core_ccip_deployment_tests) , Core Tests (go_core_race_tests) , Core Tests (go_core_fuzz) , Find New Flaky Tests In Chainlink Project / Run Tests , Find New Flaky Tests In Chainlink Project / Report , Flakey Test Detection , SonarQube Scan

1. Missing go.sum entry for module providing package:

[go_core_ccip_deployment_tests]

Source of Error:

../core/services/chainlink/relayer_factory.go:17:2: missing go.sum entry for module providing package github.com/smartcontractkit/chainlink-solana/pkg/solana (imported by github.com/smartcontractkit/chainlink/v2/core/services/chainlink); to add:
	go get github.com/smartcontractkit/chainlink/v2/core/services/[email protected]

Why: The error indicates that the go.sum file is missing an entry for the github.com/smartcontractkit/chainlink-solana/pkg/solana module, which is required by the chainlink package.

Suggested fix: Run go get github.com/smartcontractkit/chainlink/v2/core/services/[email protected] to add the missing module to the go.sum file.

2. Missing go.sum entry for module providing package (config):

[go_core_ccip_deployment_tests]

Source of Error:

../core/services/chainlink/config.go:14:2: missing go.sum entry for module providing package github.com/smartcontractkit/chainlink-solana/pkg/solana/config (imported by github.com/smartcontractkit/chainlink/v2/core/services/chainlink); to add:
	go get github.com/smartcontractkit/chainlink/v2/core/services/[email protected]

Why: Similar to the previous error, this indicates that the go.sum file is missing an entry for the github.com/smartcontractkit/chainlink-solana/pkg/solana/config module.

Suggested fix: Run go get github.com/smartcontractkit/chainlink/v2/core/services/[email protected] to add the missing module to the go.sum file.

3. Deployment error: exit status 1:

[make generate]

Source of Error:

error: deployment error: exit status 1
go: updates to go.mod needed; to update it:
	go mod tidy
error: exit status 1
error: deployment error: exit status 1

Why: The make generate step failed because the go.mod file needs to be updated. The go mod tidy command should be run to clean up the go.mod file and add any missing dependencies.

Suggested fix: Run go mod tidy to update the go.mod file and ensure all dependencies are correctly listed.

4. Process completed with exit code 1:

[go_core_ccip_deployment_tests]

Source of Error:

Process completed with exit code 1.

Why: This is a general error indicating that the go_core_ccip_deployment_tests job failed due to the previous errors.

Suggested fix: Resolve the specific errors listed above to ensure the job completes successfully.

5. Process completed with exit code 2:

[make generate]

Source of Error:

Process completed with exit code 2.

Why: This is a general error indicating that the make generate job failed due to the previous errors.

Suggested fix: Resolve the specific errors listed above to ensure the job completes successfully.

6. Process completed with exit code 1:

[go_core_tests]

Source of Error:

Process completed with exit code 1.

Why: This is a general error indicating that the go_core_tests job failed due to test failures.

Suggested fix: Review the test failures and fix the underlying issues causing the tests to fail.