release: Fix git config and changelog format (#287)

Fixes the Changelog notes to have the version in the first line as it's
the title that GitHub will use for the release.

Additionally, fixes the issue where the git config doesn't have any user
set, now the script configures it when the settings are missing.

Last, corrects the GITHUB_USER to elasticcloudmachine when
updating the home-brew tap.

Signed-off-by: Marc Lopez <marc5.12@outlook.com>

Author: marclop

.github/workflows/release.yml

@@ -62,3 +62,6 @@ jobs:
           VERSION: ${{ steps.get_version.outputs.VERSION }}
           AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
           AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+          GIT_COMMITTER_EMAIL: cloud-delivery@elastic.co
+          GIT_AUTHOR_EMAIL: cloud-delivery@elastic.co
+          GIT_AUTHOR_NAME: elasticcloudmachine

notes/v1.0.0-beta3.md

@@ -1,3 +1,5 @@
+v1.0.0-beta3
+
 # Changelog
 
 Download the release binaries:

scripts/changelog.tpl.md

@@ -1,3 +1,5 @@
+vVERSION_REPLACE
+
 # Changelog
 
 Download the release binaries:

scripts/update-brew-tap.sh

@@ -7,7 +7,9 @@ VERSION=$(echo ${1}| sed 's/^v//')
 
 # Globals
 FORMULA_FILE=/tmp/homebrew-tap/Formula/ecctl.rb
-GITHUB_USER=marclop
+if [[ -z ${GITHUB_USER} ]]; then
+    export GITHUB_USER=elasticcloudmachine
+fi
 
 # Execution