package/ccache: fix license hash

Buildroot commit 1db3f0f84449843476c2887d2ea09323c66f33a4 failed to
update the license hash which is needed due to various commits in 2023
updating package versions and copyright year:
https://github.com/ccache/ccache/commits/master/LICENSE.adoc

Fixes:
http://autobuild.buildroot.net/results/41b/41b3427e30b6e44352fc78b27360fdadf9e46393/

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>

package/ccache/ccache.hash

@@ -1,4 +1,4 @@
 # sha256 computed locally
 sha256  3d3fb3f888a5b16c4fa7ee5214cca76348afd6130e8443de5f6f2424f2076a49  ccache-4.8.2.tar.xz
 sha256  80b5112739a423dfac7bed1ca8a1df3cccda3d794425441997d4462b83db4dd5  GPL-3.0.txt
-sha256  56cf64f68b7b8150300acd79899941615523ea5c56c120e92f5b175b7cc78e3c  LICENSE.adoc
+sha256  55ce274f2b898dad70d3695ab13f82656fd455bd8fb6d1c85d6f7c453bef0b2e  LICENSE.adoc