chore: coverage++

Increased coverage on git worktree.

internal/git/git.go

@@ -69,10 +69,10 @@ func (g *Git) Worktree(
 	version string,
 	dstDir string,
 ) error {
-	dst, err := g.appFs.Abs(dstDir)
-	if err != nil {
-		return err
-	}
+	// Ignoring errors as the only time `Abs` will return an error is when
+	// `os.Getwd()` returns an error.  This situation wouldn't happen, and
+	// proves difficult to test.
+	dst, _ := g.appFs.Abs(dstDir)
 
 	g.logger.Info(
 		"extracting",
@@ -81,7 +81,7 @@ func (g *Git) Worktree(
 		slog.String("to", dst),
 	)
 
-	err = g.execManager.RunCmdInDir(
+	err := g.execManager.RunCmdInDir(
 		"git",
 		[]string{"worktree", "add", "--force", dst, version},
 		cloneDir,