Update GitHub Actions workflows. (#471)

This PR was automatically generated by the
update-workflows-ecosystem-providers workflow in the pulumi/ci-mgmt
repo, from commit d11810c38fc2292ffd01a6d900bc6f3d58d0207c.

CODE-OF-CONDUCT.md

@@ -19,6 +19,7 @@ include:
 * Gracefully accepting constructive criticism
 * Focusing on what is best for the community
 * Showing empathy towards other community members
+* Contribute in a positive and constructive way
 
 Examples of unacceptable behavior by participants include:
 
@@ -30,6 +31,12 @@ Examples of unacceptable behavior by participants include:
   address, without explicit permission
 * Other conduct which could reasonably be considered inappropriate in a
   professional setting
+
+## Our Community Guidelines
+* Be clear and stay on topic. Communicating with strangers on the Internet can make it hard to convey or read tone, and sarcasm is frequently misunderstood. Try to use clear language, and think about how the other person will receive it.
+* Don’t cross-post the same thing in multiple GitHub Discussion topics or multiple Slack channels. This can make it difficult for people answering your questions and creates "scrollback spam".
+* Public discussion is preferred to private. Avoid using Slack DMs for questions, and instead share them in public Slack channels or GitHub Discussion threads. This allows a larger audience to both share their knowledge as well as learn from your question or issue. If you're having a problem, chances are someone else is having a similar problem. Learning in public is a community contribution.
+* Minimize notifications to other community members. Avoid tagging other community members in Slack messages or Discussion threads, unless you are replying to something specific. Community members are here to help each other, but are not "on call" for support, and we expect everyone to try to minimize "notification fatigue". If your issue is time-sensitive or critical, use methods like support@pulumi.com instead.
 
 ## Our Responsibilities
 
@@ -38,19 +45,19 @@ behavior and are expected to take appropriate and fair corrective action in
 response to any instances of unacceptable behavior.
 
 Project maintainers have the right and responsibility to remove, edit, or
-reject comments, commits, code, wiki edits, issues, and other contributions
-that are not aligned to this Code of Conduct, or to ban temporarily or
-permanently any contributor for other behaviors that they deem inappropriate,
-threatening, offensive, or harmful.
+reject comments, commits, code, wiki edits, issues, GitHub Discussions posts, 
+and other contributions that are not aligned to this Code of Conduct, or to ban 
+temporarily or permanently any contributor for other behaviors that they deem 
+inappropriate, threatening, offensive, or harmful.
 
 ## Scope
 
-This Code of Conduct applies both within project spaces and in public spaces
-when an individual is representing the project or its community. Examples of
-representing a project or community include using an official project e-mail
-address, posting via an official social media account, or acting as an appointed
-representative at an online or offline event. Representation of a project may be
-further defined and clarified by project maintainers.
+This Code of Conduct applies both within project spaces (including the Community Slack
+and GitHub Discussions forums) and in public spaces when an individual is representing the 
+project or its community. Examples of representing a project or community include 
+using an official project e-mail address, posting via an official social media account, 
+or acting as an appointed representative at an online or offline event. Representation 
+of a project may be further defined and clarified by project maintainers.
 
 ## Enforcement