add requirements for simulating storage server

Author: sanderegg

services/web/server/requirements/_test.in

@@ -15,6 +15,7 @@ click
 coverage
 docker
 Faker
+fastapi
 flaky
 hypothesis
 jsonref

services/web/server/requirements/_test.txt

@@ -63,6 +63,8 @@ faker==19.6.1
     # via
     #   -c requirements/_base.txt
     #   -r requirements/_test.in
+fastapi==0.115.8
+    # via -r requirements/_test.in
 flaky==3.8.1
     # via -r requirements/_test.in
 frozenlist==1.4.1
@@ -142,6 +144,15 @@ pprintpp==0.4.0
     # via pytest-icdiff
 py-cpuinfo==9.0.0
     # via pytest-benchmark
+pydantic==2.10.2
+    # via
+    #   -c requirements/../../../../requirements/constraints.txt
+    #   -c requirements/_base.txt
+    #   fastapi
+pydantic-core==2.27.1
+    # via
+    #   -c requirements/_base.txt
+    #   pydantic
 pyrsistent==0.18.1
     # via
     #   -c requirements/_base.txt
@@ -232,6 +243,10 @@ sqlalchemy==1.4.47
     #   alembic
 sqlalchemy2-stubs==0.0.2a38
     # via sqlalchemy
+starlette==0.45.3
+    # via
+    #   -c requirements/../../../../requirements/constraints.txt
+    #   fastapi
 tenacity==8.5.0
     # via
     #   -c requirements/_base.txt
@@ -252,7 +267,10 @@ typing-extensions==4.12.2
     # via
     #   -c requirements/_base.txt
     #   asyncpg-stubs
+    #   fastapi
     #   mypy
+    #   pydantic
+    #   pydantic-core
     #   sqlalchemy2-stubs
 urllib3==2.2.3
     # via