[Snyk] Security upgrade golang from 1.9 to 1.18

[snyk-bot]

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

• go/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
	886	Arbitrary Argument Injection SNYK-DEBIAN9-GIT-340821	Mature
	714	OS Command Injection SNYK-DEBIAN9-MERCURIAL-311070	No Known Exploit
	714	Incorrect Permission Assignment for Critical Resource SNYK-DEBIAN9-MERCURIAL-311113	No Known Exploit
	714	OS Command Injection SNYK-DEBIAN9-OPENSSL-2807589	No Known Exploit
	714	Out-of-bounds Write SNYK-DEBIAN9-WGET-342192	No Known Exploit

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[verygoodbot]

🍄 Trufflehog Scan

Secrets FOUND!

Show Output

~~~~~~~~~~~~~~~~~~~~~
Reason: Password in URL
Date: 2022-08-04 05:55:16
Hash: 0f41fbba4f12111f5c70dc0a4942c3d5bb3eecac
Filepath: nodejs/example.js
Branch: origin/snyk-fix-e36c2695573ff87941dbc94e1e726dcb
Commit: fix: go/Dockerfile to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-DEBIAN9-GIT-340821
- https://snyk.io/vuln/SNYK-DEBIAN9-MERCURIAL-311070
- https://snyk.io/vuln/SNYK-DEBIAN9-MERCURIAL-311113
- https://snyk.io/vuln/SNYK-DEBIAN9-OPENSSL-2807589
- https://snyk.io/vuln/SNYK-DEBIAN9-WGET-342192
http://${username}:${password}@${forward_proxy}`;

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