Remove old non-consolidated actions and Projects toolsets

This commit removes the old individual tool implementations for
Actions and Projects toolsets that have been superseded by consolidated
tools (actions_list, actions_get, actions_run_trigger, get_job_logs,
projects_list, projects_get, projects_write).

Removed old Actions tools:
- ListWorkflows, ListWorkflowRuns, RunWorkflow, GetWorkflowRun
- GetWorkflowRunLogs, ListWorkflowJobs, GetJobLogs
- RerunWorkflowRun, RerunFailedJobs, CancelWorkflowRun
- ListWorkflowRunArtifacts, DownloadWorkflowRunArtifact
- DeleteWorkflowRunLogs, GetWorkflowRunUsage

Removed old Projects tools:
- ListProjects, GetProject, ListProjectFields, GetProjectField
- ListProjectItems, GetProjectItem, AddProjectItem
- UpdateProjectItem, DeleteProjectItem

Also removed:
- Feature flag constants (FeatureFlagHoldbackConsolidatedActions/Projects)
- FeatureFlagDisable from consolidated tools
- Old toolsnaps for removed tools
- Tests for removed tools
- Unused helper function toNewProjectType

Co-authored-by: mattdholloway <918573+mattdholloway@users.noreply.github.com>

Author: Copilot