[Snyk] Security upgrade golang from 1.17.5 to 1.18

[chayim]

This PR was automatically created by Snyk using the credentials of a real user.

Keeping your Docker base image up-to-date means you’ll benefit from security fixes in the latest version of your chosen image. #### Changes included in this PR - Dockerfile We recommend upgrading to `golang:1.18`, as this image has only 110 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected. Some of the most important vulnerabilities in your base image include: | Severity | Priority Score / 1000 | Issue | Exploit Maturity | | :------: | :-------------------- | :---- | :--------------- | |  | **714** | Double Free
[SNYK-DEBIAN11-CURL-1585150](https://snyk.io/vuln/SNYK-DEBIAN11-CURL-1585150) | No Known Exploit | |  | **714** | Incorrect Default Permissions
[SNYK-DEBIAN11-CURL-2936229](https://snyk.io/vuln/SNYK-DEBIAN11-CURL-2936229) | No Known Exploit | |  | **714** | Directory Traversal
[SNYK-DEBIAN11-DPKG-2847942](https://snyk.io/vuln/SNYK-DEBIAN11-DPKG-2847942) | No Known Exploit | |  | **714** | OS Command Injection
[SNYK-DEBIAN11-OPENSSL-2807596](https://snyk.io/vuln/SNYK-DEBIAN11-OPENSSL-2807596) | No Known Exploit | |  | **714** | OS Command Injection
[SNYK-DEBIAN11-OPENSSL-2933518](https://snyk.io/vuln/SNYK-DEBIAN11-OPENSSL-2933518) | No Known Exploit | --- **Note:** _You are seeing this because you or someone else with access to this repository has authorized Snyk to open fix PRs._ For more information: 🧐 [View latest project report](https://app.snyk.io/org/redislabs/project/d344bed3-09fc-4884-8a96-bc5c63d31f9f?utm_source=github&utm_medium=referral&page=fix-pr) 🛠 [Adjust project settings](https://app.snyk.io/org/redislabs/project/d344bed3-09fc-4884-8a96-bc5c63d31f9f?utm_source=github&utm_medium=referral&page=fix-pr/settings) [//]: # 'snyk:metadata:{"prId":"2e039907-afcf-4241-a185-8db4e8745aa1","prPublicId":"2e039907-afcf-4241-a185-8db4e8745aa1","dependencies":[{"name":"golang","from":"1.17.5","to":"1.18"}],"packageManager":"dockerfile","projectPublicId":"d344bed3-09fc-4884-8a96-bc5c63d31f9f","projectUrl":"https://app.snyk.io/org/redislabs/project/d344bed3-09fc-4884-8a96-bc5c63d31f9f?utm_source=github&utm_medium=referral&page=fix-pr","type":"auto","patch":[],"vulns":["SNYK-DEBIAN11-DPKG-2847942","SNYK-DEBIAN11-CURL-2936229","SNYK-DEBIAN11-OPENSSL-2933518","SNYK-DEBIAN11-OPENSSL-2807596","SNYK-DEBIAN11-CURL-1585150"],"upgrade":["SNYK-DEBIAN11-CURL-1585150","SNYK-DEBIAN11-CURL-2936229","SNYK-DEBIAN11-DPKG-2847942","SNYK-DEBIAN11-OPENSSL-2807596","SNYK-DEBIAN11-OPENSSL-2933518"],"isBreakingChange":false,"env":"prod","prType":"fix","templateVariants":["updated-fix-title","priorityScore"],"priorityScoreList":[714,714,714,714,714]}' --- **Learn how to fix vulnerabilities with free interactive lessons:** 🦉 [Learn about vulnerability in an interactive lesson of Snyk Learn.](https://learn.snyk.io?loc=fix-pr)

[codecov[bot]]

Codecov Report

Merging #136 (67e26a3) into master (cf3a8fe) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #136   +/-   ##
=======================================
  Coverage   82.74%   82.74%           
=======================================
  Files           7        7           
  Lines         591      591           
=======================================
  Hits          489      489           
  Misses         59       59           
  Partials       43       43           

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