fix: remove all extraneous newlines from changelogs

packages/automatic-releases/__tests__/automaticReleases.test.ts

@@ -12,7 +12,7 @@ describe('main handler processing automatic releases', () => {
   const testInputDraft = false;
   const testInputPrerelease = true;
   const testInputTitle = 'Development Build';
-  const testInputBody = `\n\n## Commits\n\n- [[f6f40d9](https://github.com/octocat/Hello-World/commit/${testGhSHA})]: Fix all the bugs (Monalisa Octocat)`;
+  const testInputBody = `## Commits\n- [[f6f40d9](https://github.com/octocat/Hello-World/commit/${testGhSHA})]: Fix all the bugs (Monalisa Octocat)`;
   const testInputFiles = 'file1.txt\nfile2.txt\n*.jar\n\n';
 
   beforeEach(() => {
@@ -128,7 +128,7 @@ describe('main handler processing automatic releases', () => {
     const compareCommitsPayload = JSON.parse(
       fs.readFileSync(path.join(__dirname, 'payloads', 'compare-commits.json'), 'utf8'),
     );
-    const testInputBody = `\n\n## Commits\n\n- [[f6f40d9](https://github.com/octocat/Hello-World/commit/${testGhSHA})]: Fix all the bugs (Monalisa Octocat) [#22](https://example.com/PR22)`;
+    const testInputBody = `## Commits\n- [[f6f40d9](https://github.com/octocat/Hello-World/commit/${testGhSHA})]: Fix all the bugs (Monalisa Octocat) [#22](https://example.com/PR22)`;
 
     const getPreviousReleaseSHA = nock('https://api.github.com')
       .matchHeader('authorization', `token ${testGhToken}`)

packages/automatic-releases/__tests__/payloads/parsed-commits-breaking-changes-result.txt

@@ -1,7 +1,5 @@
 ## Breaking Changes
-
 - revert a bunch of stuff [#2](https://github.com/marvinpinto/private-actions-tester/pull/2) ([Marvin Pinto](https://github.com/marvinpinto/private-actions-tester/commit/4398ef4ea6f5a61880ca94ecfb8e60d1a38497dd))
 
 ## Reverts
-
 - revert a bunch of stuff [#2](https://github.com/marvinpinto/private-actions-tester/pull/2) ([Marvin Pinto](https://github.com/marvinpinto/private-actions-tester/commit/4398ef4ea6f5a61880ca94ecfb8e60d1a38497dd))

packages/automatic-releases/__tests__/payloads/parsed-commits-multiple-prs-result.txt

@@ -1,3 +1,2 @@
 ## Reverts
-
 - revert a bunch of stuff [#2](https://github.com/marvinpinto/private-actions-tester/pull/2),[#10](https://github.com/marvinpinto/private-actions-tester/pull/10) ([Marvin Pinto](https://github.com/marvinpinto/private-actions-tester/commit/4398ef4ea6f5a61880ca94ecfb8e60d1a38497dd))

packages/automatic-releases/__tests__/payloads/parsed-commits-multiple-result.txt

@@ -1,5 +1,4 @@
 ## Features
-
 - add the initial prototype of the automatic-releases GitHub action [#2](https://github.com/marvinpinto/private-actions-tester/pull/2) ([Marvin Pinto](https://github.com/marvinpinto/private-actions-tester/commit/4398ef4ea6f5a61880ca94ecfb8e60d1a38497dd))
 - delete previous releases associated with the specified tag [#2](https://github.com/marvinpinto/private-actions-tester/pull/2) ([Marvin Pinto](https://github.com/marvinpinto/private-actions-tester/commit/c01c5105f679a2e692e40877def62ec69a3f9f2b))
 - create new GitHub releases [#2](https://github.com/marvinpinto/private-actions-tester/pull/2) ([Marvin Pinto](https://github.com/marvinpinto/private-actions-tester/commit/50c9b2d9400621ffbc0af334d0911c25354ee383))
@@ -8,5 +7,4 @@
 - use the commit list to generate a changelog [#2](https://github.com/marvinpinto/private-actions-tester/pull/2) ([Marvin Pinto](https://github.com/marvinpinto/private-actions-tester/commit/1be97dbfbc3d399b38dfaa0b23a31816fcc000d5))
 
 ## Tests
-
 - pr strings [#2](https://github.com/marvinpinto/private-actions-tester/pull/2) ([Marvin Pinto](https://github.com/marvinpinto/private-actions-tester/commit/377432c80b3955c3b2e4b0a045b0a90f8abe3480))

packages/automatic-releases/__tests__/payloads/parsed-commits-non-conforming-result.txt

@@ -1,3 +1,2 @@
 ## Commits
-
 - [[f6f40d9](https://github.com/octocat/Hello-World/commit/f6f40d9fbd1130f7f2357bb54225567dbd7a3793)]: Fix all the bugs (Monalisa Octocat)

packages/automatic-releases/__tests__/payloads/parsed-commits-scoped-result.txt

@@ -1,3 +1,2 @@
 ## Reverts
-
 - **backend**: revert a bunch of stuff ([Marvin Pinto](https://github.com/marvinpinto/private-actions-tester/commit/4398ef4ea6f5a61880ca94ecfb8e60d1a38497dd))

packages/automatic-releases/__tests__/payloads/parsed-commits-single-result.txt

@@ -1,3 +1,2 @@
 ## Reverts
-
 - revert a bunch of stuff [#2](https://github.com/marvinpinto/private-actions-tester/pull/2) ([Marvin Pinto](https://github.com/marvinpinto/private-actions-tester/commit/4398ef4ea6f5a61880ca94ecfb8e60d1a38497dd))

packages/automatic-releases/__tests__/taggedReleases.test.ts

@@ -10,7 +10,7 @@ describe('main handler processing tagged releases', () => {
   const testGhSHA = 'f6f40d9fbd1130f7f2357bb54225567dbd7a3793';
   const testInputDraft = false;
   const testInputPrerelease = false;
-  const testInputBody = `\n\n## Commits\n\n- [[f6f40d9](https://github.com/octocat/Hello-World/commit/${testGhSHA})]: Fix all the bugs (Monalisa Octocat)`;
+  const testInputBody = `## Commits\n- [[f6f40d9](https://github.com/octocat/Hello-World/commit/${testGhSHA})]: Fix all the bugs (Monalisa Octocat)`;
   const testInputFiles = 'file1.txt\nfile2.txt\n*.jar\n\n';
 
   beforeEach(() => {

packages/automatic-releases/src/utils.ts

@@ -109,8 +109,8 @@ export const generateChangelogFromParsedCommits = (parsedCommits: ParsedCommits[
     .map(val => getFormattedChangelogEntry(val))
     .reduce((acc, line) => `${acc}\n${line}`, '');
   if (breaking) {
-    changelog += '\n\n## Breaking Changes\n';
-    changelog += breaking;
+    changelog += '## Breaking Changes\n';
+    changelog += breaking.trim();
   }
 
   for (const key of Object.keys(ConventionalCommitTypes)) {
@@ -120,7 +120,7 @@ export const generateChangelogFromParsedCommits = (parsedCommits: ParsedCommits[
       .reduce((acc, line) => `${acc}\n${line}`, '');
     if (clBlock) {
       changelog += `\n\n## ${ConventionalCommitTypes[key]}\n`;
-      changelog += clBlock;
+      changelog += clBlock.trim();
     }
   }
 
@@ -131,10 +131,10 @@ export const generateChangelogFromParsedCommits = (parsedCommits: ParsedCommits[
     .reduce((acc, line) => `${acc}\n${line}`, '');
   if (commits) {
     changelog += '\n\n## Commits\n';
-    changelog += commits;
+    changelog += commits.trim();
   }
 
-  return changelog;
+  return changelog.trim();
 };
 
 export const isBreakingChange = ({body, footer}): boolean => {