978: remove spring-web

Ticket: planning#978 (closed)

• removed dependency
• added OkHttpClient
• created intermediate client to abstract between logic and HTTP handling
• adjusted and extended tests

pom.xml

@@ -61,6 +61,7 @@
 
         <!-- 3rd party dependencies -->
         <nimbus.version>9.31</nimbus.version>
+        <okhttp.version>4.10.0</okhttp.version>
         <jackson-databind.version>2.15.0</jackson-databind.version>
         <jackson-annotations.version>2.15.0</jackson-annotations.version>
         <lombock.version>1.18.26</lombock.version>
@@ -68,7 +69,6 @@
         <slf4j.version>2.0.7</slf4j.version>
         <jcommander.version>1.82</jcommander.version>
         <apache-tika.version>2.7.0</apache-tika.version>
-        <spring-web.version>5.3.27</spring-web.version>
         <snakeyaml.version>2.0</snakeyaml.version>
         <open-csv.version>5.7.1</open-csv.version>
         <json-schema-validator.version>1.0.80</json-schema-validator.version>
@@ -159,11 +159,6 @@
                 <artifactId>nimbus-jose-jwt</artifactId>
                 <version>${nimbus.version}</version>
             </dependency>
-            <dependency>
-                <groupId>org.springframework</groupId>
-                <artifactId>spring-web</artifactId>
-                <version>${spring-web.version}</version>
-            </dependency>
             <dependency>
                 <groupId>ch.qos.logback</groupId>
                 <artifactId>logback-classic</artifactId>
@@ -205,6 +200,11 @@
                 <artifactId>opencsv</artifactId>
                 <version>${open-csv.version}</version>
             </dependency>
+            <dependency>
+                <groupId>com.squareup.okhttp3</groupId>
+                <artifactId>okhttp</artifactId>
+                <version>${okhttp.version}</version>
+            </dependency>
 
             <!-- Testing -->
             <dependency>