fixed dependencies

vendor/github.com/paulmach/orb/geo/README.md

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+# orb/geo [![Godoc Reference](https://pkg.go.dev/badge/github.com/paulmach/orb)](https://pkg.go.dev/github.com/paulmach/orb/geo)
+
+The geometries defined in the `orb` package are generic 2d geometries.
+Depending on what projection they're in, e.g. lon/lat or flat on the plane,
+area and distance calculations are different. This package implements methods
+that assume the lon/lat or WGS84 projection.
+
+## Examples
+
+Area of the [San Francisco Main Library](https://www.openstreetmap.org/way/24446086):
+
+```go
+poly := orb.Polygon{
+    {
+        { -122.4163816, 37.7792782 },
+        { -122.4162786, 37.7787626 },
+        { -122.4151027, 37.7789118 },
+        { -122.4152143, 37.7794274 },
+        { -122.4163816, 37.7792782 },
+    },
+}
+
+a := geo.Area(poly)
+
+fmt.Printf("%f m^2", a)
+// Output:
+// 6073.368008 m^2
+```
+
+Distance between two points:
+
+```go
+oakland := orb.Point{-122.270833, 37.804444}
+sf := orb.Point{-122.416667, 37.783333}
+
+d := geo.Distance(oakland, sf)
+
+fmt.Printf("%0.3f meters", d)
+// Output:
+// 13042.047 meters
+```
+
+Circumference of the [San Francisco Main Library](https://www.openstreetmap.org/way/24446086):
+
+```go
+poly := orb.Polygon{
+    {
+        { -122.4163816, 37.7792782 },
+        { -122.4162786, 37.7787626 },
+        { -122.4151027, 37.7789118 },
+        { -122.4152143, 37.7794274 },
+        { -122.4163816, 37.7792782 },
+    },
+}
+l := geo.Length(poly)
+
+fmt.Printf("%0.0f meters", l)
+// Output:
+// 325 meters
+```