add valueSpanMapChanged​ method added to ParameterObserver in Orekit 12

src/main/java/org/orekit/rugged/los/FixedRotation.java

src/main/java/org/orekit/rugged/los/FixedZHomothety.java

src/main/java/org/orekit/rugged/los/LOSBuilder.java

src/main/java/org/orekit/rugged/los/PolynomialRotation.java