The container created by docker-compose does not see the entrypoint

I encountered a problem in docker-compose that the api service doesn't see the entrypoint.sh and crashes. Specific error:
> exec /app/entrypoint.sh: no such file or directory

Dockerfile:

FROM ruby:3.1.0-slim

ENV LANG=C.UTF-8
WORKDIR app
RUN apt-get update && apt-get -y install build-essential libpq-dev autoconf autogen libtool
EXPOSE 3000

COPY Gemfile /app/Gemfile
COPY Gemfile.lock /app/Gemfile.lock

RUN bundle install

COPY ./entrypoint.sh .

ENTRYPOINT ["/app/entrypoint.sh"]

.docker-compose.yml:

services:
  es:
    image: elasticsearch:8.7.0
    environment:
      - discovery.type=single-node
      - ES_JAVA_OPTS=-Xms750m -Xmx750m
      - xpack.security.enabled=false

  db:
    image: postgres:14.0-alpine
    environment:
      - POSTGRES_PASSWORD= ...
    ports:
      - 5431:5432

  redis:
    image: redis:7.0.11-alpine

  api:
    build: .
    volumes:
      - .:/app
    ports:
      - 3000:3000
    environment:
      - ELASTICSEARCH_URL=http://es:9200
      - REDIS_URL=redis://redis:6379
    command: bundle exec rails s -p 3000 -b '0.0.0.0'
    depends_on:
      - db
      - redis

The file structure of the container created for the api service:

Also, strangely enough, the dockerfile has not changed since it was successfully started. I can't figure out where the problem is. Help me, please

I tried deleting all images, all containers and all volumes, none of this helped.

The executable in shebang of entrypoint.sh is not found inside docker container. Install the executable or change shabang. Most probably you have bash and bash is not inside the container, for exmaple.