pip installコマンドで「ERROR: Could not find a version that satisfies the requirement xxx」エラーになる場合

$ pip install git+https://github.com/fgshun/qreki_py.git@v0.6.0#egg=qreki
Defaulting to user installation because normal site-packages is not writeable
Collecting qreki
  Cloning https://github.com/fgshun/qreki_py.git (to revision v0.6.0) to /tmp/pip-install-h_327pdk/qreki_e8d7d4bdc6ea4c9f80957a6fa4c2c93d
  Running command git clone --filter=blob:none --quiet https://github.com/fgshun/qreki_py.git /tmp/pip-install-h_327pdk/qreki_e8d7d4bdc6ea4c9f80957a6fa4c2c93d
  Running command git checkout -q e9de7c8e8ea27cf89f5aabed09cd9b6a163fc8ab
  Resolved https://github.com/fgshun/qreki_py.git to commit e9de7c8e8ea27cf89f5aabed09cd9b6a163fc8ab
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Installing backend dependencies ... done
  Preparing metadata (pyproject.toml) ... done
  WARNING: Generating metadata for package qreki produced metadata for project name unknown. Fix your #egg=qreki fragments.
Discarding git+https://github.com/fgshun/qreki_py.git@v0.6.0#egg=qreki: Requested unknown from git+https://github.com/fgshun/qreki_py.git@v0.6.0#egg=qreki has inconsistent name: filename has 'qreki', but metadata has 'unknown'
ERROR: Could not find a version that satisfies the requirement qreki (unavailable) (from versions: none)
ERROR: No matching distribution found for qreki (unavailable)

$ pip install --upgrade pip
Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: pip in /usr/lib/python3/dist-packages (22.0.2)
Collecting pip
  Downloading pip-23.1.2-py3-none-any.whl (2.1 MB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 2.1/2.1 MB 1.2 MB/s eta 0:00:00
Installing collected packages: pip
Successfully installed pip-23.1.2


$ pip install git+https://github.com/fgshun/qreki_py.git@v0.6.0#egg=qreki
Defaulting to user installation because normal site-packages is not writeable
Collecting qreki
  Cloning https://github.com/fgshun/qreki_py.git (to revision v0.6.0) to /tmp/pip-install-g7r0z1em/qreki_90e12e1a824c45da9f2dc9c3635b1a59
  Running command git clone --filter=blob:none --quiet https://github.com/fgshun/qreki_py.git /tmp/pip-install-g7r0z1em/qreki_90e12e1a824c45da9f2dc9c3635b1a59
  Running command git checkout -q e9de7c8e8ea27cf89f5aabed09cd9b6a163fc8ab
  Resolved https://github.com/fgshun/qreki_py.git to commit e9de7c8e8ea27cf89f5aabed09cd9b6a163fc8ab
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Installing backend dependencies ... done
  Preparing metadata (pyproject.toml) ... done
Building wheels for collected packages: qreki
  Building wheel for qreki (pyproject.toml) ... done
  Created wheel for qreki: filename=qreki-0.6.0-cp310-cp310-linux_x86_64.whl size=45837 sha256=7743939c7156b5763359bc42a17dad48d60e4e9ee3c26b2506b177173ec85684
  Stored in directory: /tmp/pip-ephem-wheel-cache-q9jarp8h/wheels/47/87/24/4b0c81ca8e72deb81ec508d80d94cbfb6d563d989fceebfa5c
Successfully built qreki
Installing collected packages: qreki
Successfully installed qreki-0.6.0