Fix shader compile error on Android
Fix shader compile error on Android

**ERROR**: EffectBlurShaderGLES3: Fragment Program Compilation Failed:
23:191: S0001: Type mismatch, cannot convert from 'int' to 'float'
   At: drivers/gles3/shader_gles3.cpp:168:_display_error_with_code() - EffectBlurShaderGLES3: Fragment Program Compilation Failed:

okamstudio/godot,groud/godot,Zylann/godot,firefly2442/godot,mcanders/godot,mcanders/godot,Zylann/godot,vnen/godot,groud/godot,ex/godot,NateWardawg/godot,Shockblast/godot,guilhermefelipecgs/godot,akien-mga/godot,akien-mga/godot,MarianoGnu/godot,okamstudio/godot,Valentactive/godot,firefly2442/godot,honix/godot,NateWardawg/godot,Valentactive/godot,godotengine/godot,godotengine/godot,pkowal1982/godot,DmitriySalnikov/godot,okamstudio/godot,Paulloz/godot,akien-mga/godot,vnen/godot,ZuBsPaCe/godot,okamstudio/godot,DmitriySalnikov/godot,MarianoGnu/godot,pkowal1982/godot,DmitriySalnikov/godot,MarianoGnu/godot,Valentactive/godot,sanikoyes/godot,ZuBsPaCe/godot,honix/godot,honix/godot,pkowal1982/godot,Valentactive/godot,godotengine/godot,Zylann/godot,godotengine/godot,firefly2442/godot,DmitriySalnikov/godot,sanikoyes/godot,Paulloz/godot,RandomShaper/godot,ZuBsPaCe/godot,Zylann/godot,okamstudio/godot,ex/godot,BastiaanOlij/godot,Faless/godot,josempans/godot,BastiaanOlij/godot,Valentactive/godot,Shockblast/godot,mcanders/godot,vnen/godot,vnen/godot,Faless/godot,okamstudio/godot,godotengine/godot,BastiaanOlij/godot,mcanders/godot,vkbsb/godot,firefly2442/godot,vnen/godot,RandomShaper/godot,josempans/godot,MarianoGnu/godot,okamstudio/godot,BastiaanOlij/godot,vkbsb/godot,ex/godot,akien-mga/godot,vkbsb/godot,Zylann/godot,firefly2442/godot,Shockblast/godot,Shockblast/godot,NateWardawg/godot,josempans/godot,groud/godot,sanikoyes/godot,godotengine/godot,NateWardawg/godot,honix/godot,guilhermefelipecgs/godot,groud/godot,guilhermefelipecgs/godot,groud/godot,NateWardawg/godot,sanikoyes/godot,honix/godot,ex/godot,vnen/godot,josempans/godot,guilhermefelipecgs/godot,BastiaanOlij/godot,Zylann/godot,guilhermefelipecgs/godot,sanikoyes/godot,Paulloz/godot,MarianoGnu/godot,MarianoGnu/godot,ex/godot,pkowal1982/godot,mcanders/godot,Shockblast/godot,firefly2442/godot,DmitriySalnikov/godot,Valentactive/godot,ZuBsPaCe/godot,sanikoyes/godot,honix/godot,NateWardawg/godot,RandomShaper/godot,Faless/godot,firefly2442/godot,vnen/godot,NateWardawg/godot,akien-mga/godot,Shockblast/godot,ex/godot,ex/godot,vkbsb/godot,firefly2442/godot,akien-mga/godot,Zylann/godot,Valentactive/godot,pkowal1982/godot,guilhermefelipecgs/godot,josempans/godot,pkowal1982/godot,godotengine/godot,MarianoGnu/godot,vkbsb/godot,MarianoGnu/godot,okamstudio/godot,BastiaanOlij/godot,DmitriySalnikov/godot,Faless/godot,sanikoyes/godot,akien-mga/godot,BastiaanOlij/godot,vkbsb/godot,Faless/godot,mcanders/godot,godotengine/godot,groud/godot,guilhermefelipecgs/godot,Valentactive/godot,vnen/godot,Faless/godot,okamstudio/godot,NateWardawg/godot,ZuBsPaCe/godot,Faless/godot,akien-mga/godot,Paulloz/godot,DmitriySalnikov/godot,vkbsb/godot,ex/godot,josempans/godot,josempans/godot,Zylann/godot,NateWardawg/godot,ZuBsPaCe/godot,Faless/godot,Shockblast/godot,ZuBsPaCe/godot,Paulloz/godot,RandomShaper/godot,ZuBsPaCe/godot,sanikoyes/godot,RandomShaper/godot,RandomShaper/godot,RandomShaper/godot,guilhermefelipecgs/godot,Shockblast/godot,okamstudio/godot,pkowal1982/godot,pkowal1982/godot,BastiaanOlij/godot,vkbsb/godot,Paulloz/godot,josempans/godot,Paulloz/godot