testing: fix a test for 32-bit

The hcl decoding apparently uses strconv.ParseInt, which fails to parse a 64bit int.
Since hcl v1 is basically EOl, it seems unlikely we'll fix this in hcl.

Since this test is only about loading values from config files, the extra large number
doesn't seem important. Trim a few zeros from the numbers so that they parse
properly on 32bit platforms.

Also skip a slow test when -short is used.

agent/config/runtime_test.go

@@ -5473,7 +5473,7 @@ func TestLoad_FullConfig(t *testing.T) {
 		HTTPSPort:                              15127,
 		HTTPUseCache:                           false,
 		KeyFile:                                "IEkkwgIA",
-		KVMaxValueSize:                         1234567800000000,
+		KVMaxValueSize:                         1234567800,
 		LeaveDrainTime:                         8265 * time.Second,
 		LeaveOnTerm:                            true,
 		Logging: logging.Config{
@@ -5868,7 +5868,7 @@ func TestLoad_FullConfig(t *testing.T) {
 			"wan_ipv4": "78.63.37.19",
 		},
 		TranslateWANAddrs: true,
-		TxnMaxReqLen:      5678000000000000,
+		TxnMaxReqLen:      567800000,
 		UIConfig: UIConfig{
 			Dir:                        "pVncV4Ey",
 			ContentPath:                "/qp1WRhYH/", // slashes are added in parsing

agent/config/testdata/full-config.hcl

@@ -285,8 +285,8 @@ limits {
     rpc_rate = 12029.43
     rpc_max_burst = 44848
     rpc_max_conns_per_client = 2954
-    kv_max_value_size = 1234567800000000
-    txn_max_req_len = 5678000000000000
+    kv_max_value_size = 1234567800
+    txn_max_req_len = 567800000
 }
 log_level = "k1zo9Spt"
 log_json = true

agent/config/testdata/full-config.json

@@ -285,8 +285,8 @@
     "rpc_rate": 12029.43,
     "rpc_max_burst": 44848,
     "rpc_max_conns_per_client": 2954,
-    "kv_max_value_size": 1234567800000000,
-    "txn_max_req_len": 5678000000000000
+    "kv_max_value_size": 1234567800,
+    "txn_max_req_len": 567800000
   },
   "log_level": "k1zo9Spt",
   "log_json": true,

command/connect/redirecttraffic/redirect_traffic_test.go

@@ -59,6 +59,10 @@ func TestRun_FlagValidation(t *testing.T) {
 }
 
 func TestGenerateConfigFromFlags(t *testing.T) {
+	if testing.Short() {
+		t.Skip("too slow for testing.Short")
+	}
+
 	cases := []struct {
 		name           string
 		command        func() cmd