Remove oai-harvest-manager dependency

Build via script failed sporadically due to server issues,
now uses library via metafacture-biblio instead, see
metafacture/metafacture-core#360

.gitlab-ci.yml

@@ -1,4 +1,4 @@
-image: maven:3-openjdk-11
+image: gradle:jdk11
 
 stages:
   - build
@@ -39,7 +39,7 @@ deploy:
      - data/production/*
 
 sonar:
-  image: maven:3-openjdk-11
+  image: gradle:jdk11
   cache:
     key: "${CI_JOB_NAME}"
     paths:

build.gradle

@@ -43,12 +43,6 @@ dependencies {
     implementation('org.metafacture:metafacture-biblio:feature-oersi-SNAPSHOT') {
         exclude group: 'xml-apis', module: 'xml-apis'
     }
-    implementation('nl.mpi:oai-harvest-manager:1.2.0') {
-        exclude group: 'xml-apis', module: 'xml-apis'
-        exclude group: 'org.apache.logging.log4j', module: 'log4j-slf4j-impl'
-        exclude group: 'org.slf4j', module: 'log4j-over-slf4j'
-        exclude group: 'ch.qos.logback', module: 'logback-classic'
-    }
     implementation 'com.fasterxml.jackson.core:jackson-databind:2.9.10.4'
     implementation 'com.github.java-json-tools:json-schema-validator:2.2.14'
     implementation 'org.slf4j:slf4j-api:1.7.30'

install_snapshots.sh

@@ -6,7 +6,3 @@ git clone https://github.com/metafacture/metafacture-fix.git -b oersi
 cd metafacture-fix
 ./gradlew install
 cd ..
-git clone https://github.com/clarin-eric/oai-harvest-manager -b 1.2.0
-cd oai-harvest-manager
-mvn clean install -DskipTests
-cd ..