KCL tests: Update engine API snapshot (#4784)

When engine merged their big extrude ID bugfix,
they changed the response for extrudes on face.

Basically there's no longer a start face for
something you extrude from a face, because there
just isn't. There's a hole in a previous face,
it's just a gap.

Co-authored-by: Jonathan Tran <jonnytran@gmail.com>

src/wasm-lib/kcl/tests/pentagon_fillet_sugar/program_memory.snap

@@ -3260,7 +3260,7 @@ snapshot_kind: text
             ]
           },
           "height": 100.0,
-          "startCapId": "[uuid]",
+          "startCapId": null,
           "endCapId": "[uuid]",
           "edgeCuts": [
             {
@@ -3872,7 +3872,7 @@ snapshot_kind: text
             ]
           },
           "height": 100.0,
-          "startCapId": "[uuid]",
+          "startCapId": null,
           "endCapId": "[uuid]",
           "edgeCuts": [
             {

src/wasm-lib/kcl/tests/sketch-on-chamfer-two-times-different-order/program_memory.snap

@@ -1,6 +1,5 @@
 ---
 source: kcl/src/simulation_tests.rs
-assertion_line: 105
 description: Program memory after executing sketch-on-chamfer-two-times-different-order.kcl
 snapshot_kind: text
 ---
@@ -1584,7 +1583,7 @@ snapshot_kind: text
             ]
           },
           "height": 50.0,
-          "startCapId": "[uuid]",
+          "startCapId": null,
           "endCapId": "[uuid]",
           "__meta": [
             {

src/wasm-lib/kcl/tests/sketch-on-chamfer-two-times/program_memory.snap

@@ -1,6 +1,5 @@
 ---
 source: kcl/src/simulation_tests.rs
-assertion_line: 105
 description: Program memory after executing sketch-on-chamfer-two-times.kcl
 snapshot_kind: text
 ---
@@ -1584,7 +1583,7 @@ snapshot_kind: text
             ]
           },
           "height": 50.0,
-          "startCapId": "[uuid]",
+          "startCapId": null,
           "endCapId": "[uuid]",
           "__meta": [
             {

src/wasm-lib/kcl/tests/sketch_on_face_after_fillets_referencing_face/program_memory.snap

@@ -1,6 +1,5 @@
 ---
 source: kcl/src/simulation_tests.rs
-assertion_line: 92
 description: Program memory after executing sketch_on_face_after_fillets_referencing_face.kcl
 snapshot_kind: text
 ---
@@ -1506,7 +1505,7 @@ snapshot_kind: text
             ]
           },
           "height": 10.0,
-          "startCapId": "[uuid]",
+          "startCapId": null,
           "endCapId": "[uuid]",
           "__meta": [
             {