“Tumble outta bed and stumble to the kitchen. Pour myself a cup of ambition,” sing the three female leads as they prepare for a busy eight hours ahead. They race around the stage frantically drinking coffee, grabbing breakfast and prepping for another day at the office. The cast joins the women singing about the struggles of a working person. The Umpqua Actors Community Theatre’s production of “9 to 5: The Musical” starts with a bang with the title number. Big hair and bigger personalities combine for a raucous rendition of the 1980 movie. It’s the story of three overworked and …