Fix exponentialBackoffer overflowing into negative, bump protocol version

[Kubuxu]

At back-off number 84 (~42minuntes with no progress), the backoffer would return negative duration.

[github-actions]

Suggested version: 0.0.6

Comparing to: v0.0.5 (diff)

Changes in configuration file(s):

(empty)

gorelease says:

# diagnostics
required module github.com/microcosm-cc/[email protected] retracted by module author: Retract older versions as only latest is to be depended upon

# summary
Suggested version: v0.0.6

gocompat says:

HEAD is now at 660547c Release `v0.0.5` (#492)
Switched to branch 'main'
Your branch is up to date with 'origin/main'.

Cutting a Release (and modifying non-markdown files)

This PR is modifying both version.json and non-markdown files.
The Release Checker is not able to analyse files that are not checked in to main. This might cause the above analysis to be inaccurate.
Please consider performing all the code changes in a separate PR before cutting the release.

Automatically created GitHub Release

A draft GitHub Release has been created.
It is going to be published when this PR is merged.
You can modify its' body to include any release notes you wish to include with the release.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.67%. Comparing base (660547c) to head (05aa0fd).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #516      +/-   ##
==========================================
- Coverage   79.74%   79.67%   -0.08%     
==========================================
  Files          43       43              
  Lines        4074     4074              
==========================================
- Hits         3249     3246       -3     
- Misses        493      495       +2     
- Partials      332      333       +1     

Files	Coverage Δ
gpbft/options.go	76.74% <100.00%> (ø)
manifest/manifest.go	59.82% <100.00%> (ø)

... and 2 files with indirect coverage changes