chore(deps): pin dependencies (#655)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| httpd | pinDigest |  -> `ba84615` |
| httpd | pinDigest |  -> `5201524` |

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> ⚠ **Warning**
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> Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

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Reviewed-on: #655
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docker-compose/wiki/docker-compose.yml.j2

@@ -2,7 +2,7 @@ version: '3'
 services:
   wiki-webserver:
     container_name: wiki-webserver
-    image: httpd:2.4.57
+    image: httpd:2.4.57@sha256:5201524443f9026753e25540a44495b7f6e6ca706c71208bb3a5f2daac205c31
     restart: always
     networks:
       - traefik

friedhof/lldap/docker-compose0.yml.j2

@@ -2,7 +2,7 @@ version: '3'
 services:
   wiki-webserver:
     container_name: wiki-webserver
-    image: httpd:2.4
+    image: httpd:2.4@sha256:ba846154ade27292d216cce2d21f1c7e589f3b66a4a643bff0cdd348efd17aa3
     restart: always
     networks:
       - traefik