[Snyk] Security upgrade nodemailer from 6.9.1 to 6.9.9

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

Snyk has created this PR to fix one or more vulnerable packages in the `npm` dependencies of this project.

#### Changes included in this PR - Changes to the following files to upgrade the vulnerable dependencies to a fixed version: - package.json - package-lock.json #### Vulnerabilities that will be fixed ##### With an upgrade: Severity | Priority Score (*) | Issue | Breaking Change | Exploit Maturity :-------------------------:|-------------------------|:-------------------------|:-------------------------|:------------------------- ![medium severity](https://res.cloudinary.com/snyk/image/upload/w_20,h_20/v1561977819/icon/m.png "medium severity") | **89/1000**
**Why?** Confidentiality impact: None, Integrity impact: None, Availability impact: Low, Scope: Unchanged, Exploit Maturity: Proof of Concept, User Interaction (UI): None, Privileges Required (PR): None, Attack Complexity: Low, Attack Vector: Network, EPSS: 0.01055, Social Trends: No, Days since published: 6, Reachable: No, Transitive dependency: No, Is Malicious: No, Business Criticality: High, Provider Urgency: Medium, Package Popularity Score: 99, Impact: 2.35, Likelihood: 3.78, Score Version: V5 | Regular Expression Denial of Service (ReDoS)
[SNYK-JS-NODEMAILER-6219989](https://snyk.io/vuln/SNYK-JS-NODEMAILER-6219989) | No | Proof of Concept (*) Note that the real score may have changed since the PR was raised.

Commit messages

Package name: nodemailer

The new version differs by 32 commits.

5a2e10f chore(master): release 6.9.9 [skip-ci] (#1606)
dd8f5e8 fix(security): Fix issues described in GHSA-9h6g-pr28-7cqp. Do not use eternal matching pattern if only a few occurences are expected
2c2b46a chore: do not use caret in version specifier
be45c1b fix(tests): Use native node test runner, added code coverage support, removed grunt (#1604)
4233f6f chore(master): release 6.9.8 [skip-ci] (#1605)
09d502f chore: removed double file
b4d0e0c fix(punycode): do not use native punycode module
8376c02 Test new github notice syntax for README
bc46a3b Updated stale github action
78bdaf8 chore: remove redundant AWS SDK for JavaScript v2 (#1593)
971ced7 chore: add mailcatch.app to well-known/services.json (#1586)
879e562 chore(master): release 6.9.7 [skip-ci] (#1585)
140e3b0 Merge branch 'master' of github.com:nodemailer/nodemailer
41d482c fix(customAuth): Do not require user and pass to be set for custom authentication schemes (fixes #1584)
20e9fe0 update - `services.json` - add SES SMTP endpoints for the AP region (#1580)
9da77b6 chore(master): release 6.9.6 [skip-ci] (#1578)
7fe0a60 fix(tests): Removed Node v12 from test matrix as it is not compatible with the test framework anymore
db32c93 fix(inline): Use 'inline' as the default Content Dispostion value for embedded images
fdc7c27 chore(master): release 6.9.5 [skip-ci] (#1573)
da4744e fix(license): Updated license year
13672b2 Removed legacy files (#1571)
afd2287 Added release workflow to publish npm packages from Github
1ae83a2 Update services.json
286dc28 v6.9.4

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CodeWithAloha / HIERR

[Snyk] Security upgrade nodemailer from 6.9.1 to 6.9.9 #191

Snyk has created this PR to fix one or more vulnerable packages in the `npm` dependencies of this project.