[8.7] [FullStory] Update snippet (#153570) (#155138)

# Backport

This will backport the following commits from `main` to `8.7`:
- [[FullStory] Update snippet
(#153570)](https://github.com/elastic/kibana/pull/153570)

<!--- Backport version: 8.9.7 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

<!--BACKPORT [{"author":{"name":"Alejandro Fernández
Haro","email":"alejandro.haro@elastic.co"},"sourceCommit":{"committedDate":"2023-04-18T11:06:05Z","message":"[FullStory]
Update snippet (#153570)\n\nCo-authored-by: kibanamachine
<42973632+kibanamachine@users.noreply.github.com>","sha":"7de4733f7255c976bf6503669e31e939cb9f485f","branchLabelMapping":{"^v8.8.0$":"main","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["Feature:Telemetry","release_note:skip","backport:prev-minor","Team:Journey/Onboarding","v8.8.0"],"number":153570,"url":"https://github.com/elastic/kibana/pull/153570","mergeCommit":{"message":"[FullStory]
Update snippet (#153570)\n\nCo-authored-by: kibanamachine
<42973632+kibanamachine@users.noreply.github.com>","sha":"7de4733f7255c976bf6503669e31e939cb9f485f"}},"sourceBranch":"main","suggestedTargetBranches":[],"targetPullRequestStates":[{"branch":"main","label":"v8.8.0","labelRegex":"^v8.8.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/153570","number":153570,"mergeCommit":{"message":"[FullStory]
Update snippet (#153570)\n\nCo-authored-by: kibanamachine
<42973632+kibanamachine@users.noreply.github.com>","sha":"7de4733f7255c976bf6503669e31e939cb9f485f"}}]}]
BACKPORT-->

Co-authored-by: Alejandro Fernández Haro <alejandro.haro@elastic.co>

NOTICE.txt

@@ -257,8 +257,9 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 
 ---
-This code is part of the Services provided by FullStory, Inc. For license information, please refer to https://www.fullstory.com/legal/terms-and-conditions/.
-Portions of this code are licensed separately and can be found in https://edge.fullstory.com/s/fs.js.LICENSE.txt
+This code is part of the Services provided by FullStory, Inc. For license information, please refer to https://www.fullstory.com/legal/terms-and-conditions/
+Portions of this code are licensed under the following license:
+  For license information please see fs.js.LICENSE.txt
 
 ---
 This product bundles bootstrap@3.3.6 which is available under a

packages/analytics/shippers/fullstory/src/load_snippet.ts

@@ -36,7 +36,7 @@ export interface FullStorySnippetConfig {
 }
 
 export function loadSnippet({
-  scriptUrl = 'edge.fullstory.com/s/fs.js',
+  scriptUrl = 'https://edge.fullstory.com/s/fs.js',
   fullStoryOrgId,
   host = 'fullstory.com',
   namespace = 'FS',