Docker-laravel:Unable to locate package php8.1-cli

First Time Setting Up Docker with Sail

i run this command

 docker-compose up

The result of this command is:

 E: Unable to locate package php8.1-cli E: Couldn't find any package by
 E: Unable to locate package php8.1-cli E: Couldn't find any package by
 glob 'php8.1-cli' E: Couldn't find any package by regex 'php8.1-cli'
 E: Unable to locate package php8.1-dev E: Couldn't find any package by
 glob 'php8.1-dev' E: Couldn't find any package by regex 'php8.1-dev'
 E: Unable to locate package php8.1-pgsql ERROR: Service 'laravel'
 failed to build : Build failed

my docker file is

FROM ubuntu:21.04

LABEL maintainer="Taylor Otwell"

ARG WWWGROUP
ARG NODE_VERSION=16

WORKDIR /var/www/html

ENV DEBIAN_FRONTEND noninteractive
ENV TZ=UTC

RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

RUN apt-get update \
    && apt-get install -y gnupg gosu curl ca-certificates zip unzip git supervisor libcap2-bin python2 \
    && mkdir -p ~/.gnupg \
    && chmod 600 ~/.gnupg \
    && echo "disable-ipv6" >> ~/.gnupg/dirmngr.conf \
    && apt-key adv --homedir ~/.gnupg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys E5267A6C \
    && apt-key adv --homedir ~/.gnupg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys C300EE8C \
    && echo "deb http://ppa.launchpad.net/ondrej/php/ubuntu hirsute main" > /etc/apt/sources.list.d/ppa_ondrej_php.list \
    && apt-get update \
    && apt-get install -y php8.1-cli php8.1-dev \
       php8.1-pgsql php8.1-gd \
       php8.1-curl \
       php8.1-imap php8.1-mysql php8.1-mbstring \
       php8.1-xml php8.1-zip php8.1-bcmath php8.1-soap \
       php8.1-intl php8.1-readline \
       php8.1-ldap \
       php8.1-msgpack php8.1-igbinary php8.1-redis php8.1-swoole \
       php8.1-memcached php8.1-pcov php8.1-xdebug \
    && php -r "readfile('http://getcomposer.org/installer');" | php -- --install-dir=/usr/bin/ --filename=composer \
    && curl -sL https://deb.nodesource.com/setup_$NODE_VERSION.x | bash - \
    && apt-get install -y nodejs \
    && npm install -g npm \
    # && apt-get update \
    && apt-get install -y mysql-client \
    && apt-get -y autoremove \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

RUN setcap "cap_net_bind_service=+ep" /usr/bin/php8.1

RUN groupadd --force -g $WWWGROUP sail
RUN useradd -ms /bin/bash --no-user-group -g $WWWGROUP -u 1337 sail

COPY start-container /usr/local/bin/start-container
COPY supervisord.conf /etc/supervisor/conf.d/supervisord.conf
COPY php.ini /etc/php/8.1/cli/conf.d/99-sail.ini
RUN chmod +x /usr/local/bin/start-container

EXPOSE 8000

ENTRYPOINT ["start-container"]

I'd be grateful for any help regarding this, thanks.