test: update directory terminology in test files

Update terminology from 'working directory' to 'workspace directory' in tests
to reflect VSCode's concept of workspace vs working directory.

Signed-off-by: Eric Wheeler <[email protected]>

Author: Eric Wheeler

src/core/diff/strategies/__tests__/multi-search-replace.test.ts

@@ -2269,10 +2269,10 @@ function two() {
 			strategy = new MultiSearchReplaceDiffStrategy()
 		})
 
-		it("should include the current working directory", async () => {
+		it("should include the current workspace directory", async () => {
 			const cwd = "/test/dir"
 			const description = await strategy.getToolDescription({ cwd })
-			expect(description).toContain(`relative to the current working directory ${cwd}`)
+			expect(description).toContain(`relative to the current workspace directory ${cwd}`)
 		})
 
 		it("should include required format elements", async () => {