Bump Dependencies

[github-actions]

> ungit@1.5.15 bumpdependencies /home/runner/work/ungit/ungit
> ncu --upgrade --reject bootstrap

Upgrading /home/runner/work/ungit/ungit/package.json

 @primer/octicons         ~12.0.0  →   ~12.1.0     
 diff2html                 ~3.2.0  →    ~3.4.1     
 jquery                    ~3.5.1  →    ~3.6.0     
 lodash                  ~4.17.20  →  ~4.17.21     
 memorystore               ~1.6.4  →    ~1.6.6     
 open                      ~7.4.0  →    ~8.0.4     
 semver                    ~7.3.4  →    ~7.3.5     
 socket.io                 ~3.1.1  →    ~4.0.1     
 archiver                  ~5.2.0  →    ~5.3.0     
 electron                 ~11.2.3  →   ~12.0.2     
 eslint                   ~7.19.0  →   ~7.23.0     
 eslint-config-prettier    ~7.2.0  →    ~8.1.0     
 eslint-plugin-mocha       ~8.0.0  →    ~8.1.0     
 exorcist                  ~1.0.1  →    ~2.0.0     
 mocha                     ~8.2.1  →    ~8.3.2     
 npm-check-updates        ~11.1.1  →   ~11.3.0     
 puppeteer                 ~7.0.4  →    ~8.0.0     

Run npm install to install new versions.