fix(internal): change url encoding to lowercase (#6879)

lib/workers/pr/changelog/__snapshots__/gitlab.spec.ts.snap

@@ -54,7 +54,7 @@ Array [
       "user-agent": "https://github.com/renovatebot/renovate",
     },
     "method": "GET",
-    "url": "https://gitlab.com/api/v4/projects/meno%2Fdropzone/repository/tags",
+    "url": "https://gitlab.com/api/v4/projects/meno%2fdropzone/repository/tags",
   },
   Object {
     "headers": Object {
@@ -260,7 +260,7 @@ Array [
       "user-agent": "https://github.com/renovatebot/renovate",
     },
     "method": "GET",
-    "url": "https://gitlab.com/api/v4/projects/meno%2Fdropzone/repository/tags",
+    "url": "https://gitlab.com/api/v4/projects/meno%2fdropzone/repository/tags",
   },
   Object {
     "headers": Object {
@@ -407,7 +407,7 @@ Array [
       "user-agent": "https://github.com/renovatebot/renovate",
     },
     "method": "GET",
-    "url": "https://gitlab.com/api/v4/projects/meno%2Fdropzone/repository/tags",
+    "url": "https://gitlab.com/api/v4/projects/meno%2fdropzone/repository/tags",
   },
   Object {
     "headers": Object {

lib/workers/pr/changelog/gitlab.spec.ts

@@ -84,7 +84,7 @@ describe(getName(__filename), () => {
     it('uses GitLab tags', async () => {
       httpMock
         .scope(baseUrl)
-        .get('/api/v4/projects/meno%2Fdropzone/repository/tags')
+        .get('/api/v4/projects/meno%2fdropzone/repository/tags')
         .reply(200, [
           { name: 'v5.2.0' },
           { name: 'v5.4.0' },
@@ -109,7 +109,7 @@ describe(getName(__filename), () => {
     it('handles empty GitLab tags response', async () => {
       httpMock
         .scope(baseUrl)
-        .get('/api/v4/projects/meno%2Fdropzone/repository/tags')
+        .get('/api/v4/projects/meno%2fdropzone/repository/tags')
         .reply(200, [])
         .persist()
         .get('/api/v4/projects/meno/dropzone/repository/tree/')
@@ -127,7 +127,7 @@ describe(getName(__filename), () => {
     it('uses GitLab tags with error', async () => {
       httpMock
         .scope(baseUrl)
-        .get('/api/v4/projects/meno%2Fdropzone/repository/tags')
+        .get('/api/v4/projects/meno%2fdropzone/repository/tags')
         .replyWithError('Unknown GitLab Repo')
         .persist()
         .get('/api/v4/projects/meno/dropzone/repository/tree/')

lib/workers/pr/changelog/source-gitlab.ts

@@ -21,7 +21,7 @@ async function getTagsInner(
 ): Promise<string[]> {
   logger.trace('getTags() from gitlab');
   let url = endpoint;
-  const repoid = repository.replace(/\//g, '%2F');
+  const repoid = repository.replace(/\//g, '%2f');
   url += `projects/${repoid}/repository/tags`;
   try {
     const res = await gitlabHttp.getJson<{ name: string }[]>(url, {