fix(archives): modification de composer.json, .gitignore et .gitattributes pour que les commandes git archive et composer archive fonctionnent

.gitattributes

@@ -3,15 +3,11 @@
 .gitignore export-ignore
 .gitattributes export-ignore
 .htaccess export-ignore
-/IMG/ export-ignore
-/config/ export-ignore
 docker-compose.override.yml export-ignore
 docker-compose.yml export-ignore
 /lib/ export-ignore
-/local/ export-ignore
 /plugins/ export-ignore
 /squelettes/ export-ignore
-/tmp/ export-ignore
 /lib/ export-ignore
 /mutualisation/ export-ignore
 /sites/ export-ignore

.gitignore

@@ -10,6 +10,7 @@
 /IMG/
 !/IMG/remove.txt
 /config/
+!/config/ecran_securite.php
 !/config/remove.txt
 /local/
 !/local/CACHEDIR.TAG

composer.json

@@ -35,11 +35,15 @@
             "phpstan-baseline.neon",
             "!plugins-dist",
             "!squelettes-dist",
+            "config/",
             "!config/ecran_securite.php",
             "!config/remove.txt",
+            "IMG/",
             "!IMG/remove.txt",
+            "local/",
             "!local/remove.txt",
             "!local/CACHEDIR.TAG",
+            "tmp/",
             "!tmp/remove.txt",
             "!tmp/CACHEDIR.TAG"
         ]