ghostscript: fix build (#7006)

* ghostscript: fix build

* ghostscript: limit to libfuzzer and honggfuzz

* set correct label in yaml

Author: DavidKorczynski

projects/ghostscript/Dockerfile

@@ -18,7 +18,7 @@ FROM gcr.io/oss-fuzz-base/base-builder
 
 RUN apt-get update && apt-get install -y autoconf zlibc libtool liblcms2-dev libpng-dev
 RUN git clone --branch branch-2.2 --single-branch --depth 1 https://github.com/apple/cups.git cups
-RUN git clone --branch VER-2-10-1 --single-branch --depth 1 https://git.savannah.gnu.org/git/freetype/freetype2.git freetype
+RUN git clone --branch VER-2-11-1 --single-branch --depth 1 https://git.savannah.gnu.org/git/freetype/freetype2.git freetype
 RUN git clone --single-branch --depth 1 git://git.ghostscript.com/ghostpdl.git ghostpdl
 RUN mkdir ghostpdl/fuzz
 

projects/ghostscript/project.yaml

@@ -12,4 +12,7 @@ sanitizers:
   - address
 # Disabled MSAN because of https://github.com/google/oss-fuzz/issues/6294
 #  - memory
-main_repo: 'git://git.ghostscript.com/ghostpdl.git'
+main_repo: 'git://git.ghostscript.com/ghostpdl.git'
+fuzzing_engines:
+  - libfuzzer
+  - honggfuzz