Update dependency sinatra-asset-pipeline to v2

[renovate]

This PR contains the following updates:

Package	Update	Change
sinatra-asset-pipeline	major	'0.7.0' -> '2.2.1'

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

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This PR has been generated by Mend Renovate. View repository job log here.

[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻️ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you check the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: Gemfile.lock

ruby 2.7.1p83 (2020-03-31 revision a0c7c23c9c) [x86_64-linux]
Successfully installed bundler-1.16.0
1 gem installed
Fetching gem metadata from https://rubygems.org/........
Fetching gem metadata from https://rubygems.org/.
Could not find gem 'ruby� (~> 2.4.1.0)' in the local ruby installation.
The source contains 'ruby�' at: 2.7.1.83

[renovate]

⚠ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: Gemfile.lock

Installing legacy tool bundler v1.17.2
Successfully installed bundler-1.17.2
1 gem installed
Bundler version 1.17.2
ruby 2.7.6p219 (2022-04-12 revision c9c2245c0a) [x86_64-linux]
Could not find gem 'undefined'.

[renovate]

Edited/Blocked Notification

Renovate will not automatically rebase this PR, because it does not recognize the last commit author and assumes somebody else may have edited the PR.

You can manually request rebase by checking the rebase/retry box above.

⚠️ Warning: custom changes will be lost.