fix(data/clients/git): more strictly match the git client

Signed-off-by: Xe Iaso <me@xeiaso.net>

data/clients/git.yaml

@@ -10,5 +10,11 @@
           userAgent.startsWith("JGit/") ||
           userAgent.startsWith("JGit-")
         )
-    - '"Git-Protocol" in headers'
-    - headers["Git-Protocol"] == "version=2"
+      - '"Accept" in headers'
+      - headers["Accept"] == "*/*"
+      - '"Cache-Control" in headers'
+      - headers["Cache-Control"] == "no-cache"
+      - '"Pragma" in headers'
+      - headers["Pragma"] == "no-cache"
+      - '"Accept-Encoding" in headers'
+      - headers["Accept-Encoding"].contains("gzip")