message: docs: Replace "maintainers" with "security team" in e-mail templates
diff: @@ -11,7 +11,7 @@ Cc: envoy-security@googlegroups.com, envoy-maintainers@googlegroups.com
  Hello Envoy Community,
  -The Envoy maintainers would like to announce the forthcoming release of Envoy
  +The Envoy security team would like to announce the forthcoming release of Envoy
  $VERSION.
  This release will be made available on the $ORDINALDAY of $MONTH $YEAR at
  @@ -21,7 +21,7 @@ defect(s). The highest rated security defect is considered $SEVERITY severity.
  No further details or patches will be made available in advance of the release.
  Thanks,
  -$PERSON (on behalf of the Envoy maintainers)
  +$PERSON (on behalf of the Envoy security team and maintainers)
  ```
  ## Upcoming security release to cncf-envoy-distributors-announce@lists.cncf.io
  @@ -61,7 +61,7 @@ or to envoy-security@googlegroups.com for direct communication with the Envoy
  security team.
  Thanks,
  -$PERSON (on behalf of the Envoy security team)
  +$PERSON (on behalf of the Envoy security team and maintainers)
  ```
  ## Candidate release patches to cncf-envoy-distributors-announce@lists.cncf.io
  @@ -98,7 +98,7 @@ envoy-security@googlegroups.com for direct communication with the Envoy
  security team.
  Thanks,
  -$PERSON (on behalf of the Envoy security team)
  +$PERSON (on behalf of the Envoy security team and maintainers)
  ```
  ## Security Fix Announcement
  @@ -110,7 +110,7 @@ Cc: envoy-security@googlegroups.com, envoy-maintainers@googlegroups.com
  Hello Envoy Community,
  -The Envoy maintainers would like to announce the availability of Envoy $VERSION.
  +The Envoy security team would like to announce the availability of Envoy $VERSION.
  This addresses the following CVE(s):
  * CVE-YEAR-ABCDEF (CVSS score $CVSS): $CVESUMMARY
  @@ -164,5 +164,5 @@ coordination in making this release.
  Thanks,
  -$PERSON (on behalf of the Envoy maintainers)
  +$PERSON (on behalf of the Envoy security team and maintainers)
  ```
  