upgrade FasterForest to 2.6.0 and fix GString compilation errors

Replace flat jar with local Maven repo dependency at correct path
(groupId/artifactId/version/). Fix GString-to-String type errors in
AnalyzeRoutine that broke compilation with @CompileStatic.

build.gradle

@@ -22,7 +22,7 @@ apply plugin: "com.github.ben-manes.versions"   //  ./gradlew dependencyUpdates
 
 
 group = 'cz.siret'
-version = '2.5.2-dev.6'
+version = '2.5.2-dev.8'
 
 description = 'Ligand binding site prediction based on machine learning.'
 
@@ -215,6 +215,7 @@ dependencies {
     implementation 'org.openscience.cdk:cdk-silent:2.11'           // for Atom class
 
     implementation 'cz.cuni.cusbg:faster-molecular-surface:1.0'
+    implementation 'cz.siret.prank:FasterForest:2.6.0'
 
     implementation 'nz.ac.waikato.cms.weka:weka-dev:3.9.6'
 

lib/local-mvn-repo/cz/siret/prank/FasterForest/2.6.0/FasterForest-2.6.0.pom

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+  <!-- This module was also published with a richer model, Gradle metadata,  -->
+  <!-- which should be used instead. Do not delete the following line which  -->
+  <!-- is to indicate to Gradle or any Gradle module metadata file consumer  -->
+  <!-- that they should prefer consuming it instead. -->
+  <!-- do_not_remove: published-with-gradle-metadata -->
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>cz.siret.prank</groupId>
+  <artifactId>FasterForest</artifactId>
+  <version>2.6.0</version>
+  <dependencies>
+    <dependency>
+      <groupId>org.apache.commons</groupId>
+      <artifactId>commons-lang3</artifactId>
+      <version>3.18.0</version>
+      <scope>runtime</scope>
+    </dependency>
+    <dependency>
+      <groupId>nz.ac.waikato.cms.weka</groupId>
+      <artifactId>weka-dev</artifactId>
+      <version>3.9.6</version>
+      <scope>runtime</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.carrotsearch</groupId>
+      <artifactId>hppc</artifactId>
+      <version>0.10.0</version>
+      <scope>runtime</scope>
+    </dependency>
+  </dependencies>
+</project>

src/main/groovy/cz/siret/prank/program/routines/analyze/AnalyzeRoutine.groovy

@@ -181,7 +181,7 @@ class AnalyzeRoutine extends Routine {
                 String mmcifId = it.mmcifId
                 int nres = it.length
                 String chars = it.biojavaCodeCharString
-                csvRows.add("${item.label}, $nchains, $chainId, $mmcifId, $nres, $chars ")
+                csvRows.add("${item.label}, $nchains, $chainId, $mmcifId, $nres, $chars " as String)
             }
         }
         String csv = "protein, n_chains, chain_id, mmcif_id, n_residues, residue_string\n" +
@@ -290,7 +290,7 @@ class AnalyzeRoutine extends Routine {
             String chainIds = p.residueChains.collect { it.authorId }.join(" ")
             int nres = p.residues.size()
             int nlabres = s.total
-            csvRows.add("${item.label}, $nchains, $chainIds, $nres, $nlabres, ${s.positives}, ${s.negatives}, ${s.unlabeled}")
+            csvRows.add("${item.label}, $nchains, $chainIds, $nres, $nlabres, ${s.positives}, ${s.negatives}, ${s.unlabeled}" as String)
 
             if (params.visualizations) {
                 new NewPymolRenderer("$outdir/visualizations", new RenderingModel(